137748311 has 4 divisors (see below), whose sum is σ = 143737392. Its totient is φ = 131759232.

The previous prime is 137748293. The next prime is 137748323. The reversal of 137748311 is 113847731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 137748311 - 2¹⁰ = 137747287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137748341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2994506 + ... + 2994551.

It is an arithmetic number, because the mean of its divisors is an integer number (35934348).

Almost surely, 2^137748311 is an apocalyptic number.

137748311 is a deficient number, since it is larger than the sum of its proper divisors (5989081).

137748311 is an equidigital number, since it uses as much as digits as its factorization.

137748311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5989080.

The product of its digits is 14112, while the sum is 35.

The square root of 137748311 is about 11736.6226402658. The cubic root of 137748311 is about 516.4505696827.

The spelling of 137748311 in words is "one hundred thirty-seven million, seven hundred forty-eight thousand, three hundred eleven".