312875137 has 2 divisors, whose sum is σ = 312875138. Its totient is φ = 312875136.

The previous prime is 312875119. The next prime is 312875177. The reversal of 312875137 is 731578213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156525121 + 156350016 = 12511^2 + 12504^2 .

It is a cyclic number.

It is not a de Polignac number, because 312875137 - 2²³ = 304486529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312875096 and 312875105.

It is not a weakly prime, because it can be changed into another prime (312875177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156437568 + 156437569.

It is an arithmetic number, because the mean of its divisors is an integer number (156437569).

Almost surely, 2^312875137 is an apocalyptic number.

It is an amenable number.

312875137 is a deficient number, since it is larger than the sum of its proper divisors (1).

312875137 is an equidigital number, since it uses as much as digits as its factorization.

312875137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 37.

The square root of 312875137 is about 17688.2768239306. The cubic root of 312875137 is about 678.8758364935.

The spelling of 312875137 in words is "three hundred twelve million, eight hundred seventy-five thousand, one hundred thirty-seven".