137875815097 has 4 divisors (see below), whose sum is σ = 141602188516. Its totient is φ = 134149441680.

The previous prime is 137875815089. The next prime is 137875815101. The reversal of 137875815097 is 790518578731.

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

It can be written as a sum of positive squares in 2 ways, for example, as 63340808976 + 74535006121 = 251676^2 + 273011^2 .

It is a cyclic number.

It is not a de Polignac number, because 137875815097 - 2³ = 137875815089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137875815067) 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, 1863186654 + ... + 1863186727.

It is an arithmetic number, because the mean of its divisors is an integer number (35400547129).

Almost surely, 2^137875815097 is an apocalyptic number.

It is an amenable number.

137875815097 is a deficient number, since it is larger than the sum of its proper divisors (3726373419).

137875815097 is an equidigital number, since it uses as much as digits as its factorization.

137875815097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3726373418.

The product of its (nonzero) digits is 14817600, while the sum is 61.

The spelling of 137875815097 in words is "one hundred thirty-seven billion, eight hundred seventy-five million, eight hundred fifteen thousand, ninety-seven".