137238961274 has 4 divisors (see below), whose sum is σ = 205858441914. Its totient is φ = 68619480636.

The previous prime is 137238961267. The next prime is 137238961319. The reversal of 137238961274 is 472169832731.

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

It can be written as a sum of positive squares in only one way, i.e., 131859765625 + 5379195649 = 363125^2 + 73343^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34309740317 + ... + 34309740320.

Almost surely, 2^137238961274 is an apocalyptic number.

137238961274 is a deficient number, since it is larger than the sum of its proper divisors (68619480640).

137238961274 is an equidigital number, since it uses as much as digits as its factorization.

137238961274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68619480639.

The product of its digits is 3048192, while the sum is 53.

The spelling of 137238961274 in words is "one hundred thirty-seven billion, two hundred thirty-eight million, nine hundred sixty-one thousand, two hundred seventy-four".