312156230 has 16 divisors (see below), whose sum is σ = 586311264. Its totient is φ = 119433600.

The previous prime is 312156223. The next prime is 312156239. The reversal of 312156230 is 32651213.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 312156196 and 312156205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312156239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678371 + ... + 678830.

It is an arithmetic number, because the mean of its divisors is an integer number (36644454).

Almost surely, 2^312156230 is an apocalyptic number.

312156230 is a deficient number, since it is larger than the sum of its proper divisors (274155034).

312156230 is a wasteful number, since it uses less digits than its factorization.

312156230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357231.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 312156230 is about 17667.9435702065. The cubic root of 312156230 is about 678.3554767560.

The spelling of 312156230 in words is "three hundred twelve million, one hundred fifty-six thousand, two hundred thirty".