312154172 has 12 divisors (see below), whose sum is σ = 595930776. Its totient is φ = 141888240.

The previous prime is 312154133. The next prime is 312154177. The reversal of 312154172 is 271451213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312154177) 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 3 ways as a sum of consecutive naturals, for example, 3547163 + ... + 3547250.

It is an arithmetic number, because the mean of its divisors is an integer number (49660898).

Almost surely, 2^312154172 is an apocalyptic number.

It is an amenable number.

312154172 is a deficient number, since it is larger than the sum of its proper divisors (283776604).

312154172 is a wasteful number, since it uses less digits than its factorization.

312154172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7094428 (or 7094426 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 312154172 is about 17667.8853290370. The cubic root of 312154172 is about 678.3539859868.

The spelling of 312154172 in words is "three hundred twelve million, one hundred fifty-four thousand, one hundred seventy-two".