137501318749 has 4 divisors (see below), whose sum is σ = 137502243936. Its totient is φ = 137500393564.

The previous prime is 137501318743. The next prime is 137501318767. The reversal of 137501318749 is 947813105731.

137501318749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 947813105731 = 42197 ⋅22461623.

It is a cyclic number.

It is not a de Polignac number, because 137501318749 - 2⁷ = 137501318621 is a prime.

It is a super-2 number, since 2×137501318749² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137501318743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183559 + ... + 555604.

It is an arithmetic number, because the mean of its divisors is an integer number (34375560984).

Almost surely, 2^137501318749 is an apocalyptic number.

It is an amenable number.

137501318749 is a deficient number, since it is larger than the sum of its proper divisors (925187).

137501318749 is an equidigital number, since it uses as much as digits as its factorization.

137501318749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925186.

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 137501318749 in words is "one hundred thirty-seven billion, five hundred one million, three hundred eighteen thousand, seven hundred forty-nine".