238496672137 has 2 divisors, whose sum is σ = 238496672138. Its totient is φ = 238496672136.

The previous prime is 238496672131. The next prime is 238496672179. The reversal of 238496672137 is 731276694832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238382203536 + 114468601 = 488244^2 + 10699^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238496672137 is a prime.

It is not a weakly prime, because it can be changed into another prime (238496672131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119248336068 + 119248336069.

It is an arithmetic number, because the mean of its divisors is an integer number (119248336069).

Almost surely, 2^238496672137 is an apocalyptic number.

It is an amenable number.

238496672137 is a deficient number, since it is larger than the sum of its proper divisors (1).

238496672137 is an equidigital number, since it uses as much as digits as its factorization.

238496672137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18289152, while the sum is 58.

The spelling of 238496672137 in words is "two hundred thirty-eight billion, four hundred ninety-six million, six hundred seventy-two thousand, one hundred thirty-seven".