137512649765 has 8 divisors (see below), whose sum is σ = 165019896600. Its totient is φ = 110006975232.

The previous prime is 137512649759. The next prime is 137512649797. The reversal of 137512649765 is 567946215731.

It can be written as a sum of positive squares in 4 ways, for example, as 454243969 + 137058405796 = 21313^2 + 370214^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137512649765 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 137512649765.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191240 + ... + 558209.

It is an arithmetic number, because the mean of its divisors is an integer number (20627487075).

Almost surely, 2^137512649765 is an apocalyptic number.

It is an amenable number.

137512649765 is a deficient number, since it is larger than the sum of its proper divisors (27507246835).

137512649765 is an equidigital number, since it uses as much as digits as its factorization.

137512649765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786151.

The product of its digits is 9525600, while the sum is 56.

The spelling of 137512649765 in words is "one hundred thirty-seven billion, five hundred twelve million, six hundred forty-nine thousand, seven hundred sixty-five".