137531001 has 4 divisors (see below), whose sum is σ = 183374672. Its totient is φ = 91687332.

The previous prime is 137530979. The next prime is 137531011. The reversal of 137531001 is 100135731.

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.

It is not a de Polignac number, because 137531001 - 2¹⁵ = 137498233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137531011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22921831 + ... + 22921836.

It is an arithmetic number, because the mean of its divisors is an integer number (45843668).

Almost surely, 2^137531001 is an apocalyptic number.

It is an amenable number.

137531001 is a deficient number, since it is larger than the sum of its proper divisors (45843671).

137531001 is an equidigital number, since it uses as much as digits as its factorization.

137531001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45843670.

The product of its (nonzero) digits is 315, while the sum is 21.

The square root of 137531001 is about 11727.3612121398. The cubic root of 137531001 is about 516.1788447719.

Adding to 137531001 its reverse (100135731), we get a palindrome (237666732).

The spelling of 137531001 in words is "one hundred thirty-seven million, five hundred thirty-one thousand, one".