312134157 has 6 divisors (see below), whose sum is σ = 450860462. Its totient is φ = 208089432.

The previous prime is 312134153. The next prime is 312134159. The reversal of 312134157 is 751431213.

312134157 is a `hidden beast` number, since 31 + 213 + 415 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 230159241 + 81974916 = 15171^2 + 9054^2 .

It is not a de Polignac number, because 312134157 - 2² = 312134153 is a prime.

It is a super-2 number, since 2×312134157² = 194855463932201298, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312134157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312134153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17340778 + ... + 17340795.

Almost surely, 2^312134157 is an apocalyptic number.

It is an amenable number.

312134157 is a deficient number, since it is larger than the sum of its proper divisors (138726305).

312134157 is a wasteful number, since it uses less digits than its factorization.

312134157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34681579 (or 34681576 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 312134157 is about 17667.3188967653. The cubic root of 312134157 is about 678.3394872269.

The spelling of 312134157 in words is "three hundred twelve million, one hundred thirty-four thousand, one hundred fifty-seven".