137049518531 has 4 divisors (see below), whose sum is σ = 137058876000. Its totient is φ = 137040161064.

The previous prime is 137049518527. The next prime is 137049518587. The reversal of 137049518531 is 135815940731.

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 137049518531 - 2² = 137049518527 is a prime.

It is a super-2 number, since 2×137049518531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137049518131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4656731 + ... + 4686068.

It is an arithmetic number, because the mean of its divisors is an integer number (34264719000).

Almost surely, 2^137049518531 is an apocalyptic number.

137049518531 is a deficient number, since it is larger than the sum of its proper divisors (9357469).

137049518531 is an equidigital number, since it uses as much as digits as its factorization.

137049518531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9357468.

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 137049518531 in words is "one hundred thirty-seven billion, forty-nine million, five hundred eighteen thousand, five hundred thirty-one".