239152413257 has 2 divisors, whose sum is σ = 239152413258. Its totient is φ = 239152413256.

The previous prime is 239152413239. The next prime is 239152413307. The reversal of 239152413257 is 752314251932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 237886405696 + 1266007561 = 487736^2 + 35581^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239152413257 is a prime.

It is not a weakly prime, because it can be changed into another prime (239152413557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119576206628 + 119576206629.

It is an arithmetic number, because the mean of its divisors is an integer number (119576206629).

Almost surely, 2^239152413257 is an apocalyptic number.

It is an amenable number.

239152413257 is a deficient number, since it is larger than the sum of its proper divisors (1).

239152413257 is an equidigital number, since it uses as much as digits as its factorization.

239152413257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 44.

The spelling of 239152413257 in words is "two hundred thirty-nine billion, one hundred fifty-two million, four hundred thirteen thousand, two hundred fifty-seven".