312212494 has 8 divisors (see below), whose sum is σ = 510893208. Its totient is φ = 141914760.

The previous prime is 312212491. The next prime is 312212507. The reversal of 312212494 is 494212213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312212491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7095717 + ... + 7095760.

It is an arithmetic number, because the mean of its divisors is an integer number (63861651).

Almost surely, 2^312212494 is an apocalyptic number.

312212494 is a deficient number, since it is larger than the sum of its proper divisors (198680714).

312212494 is a wasteful number, since it uses less digits than its factorization.

312212494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14191490.

The product of its digits is 3456, while the sum is 28.

The square root of 312212494 is about 17669.5357607380. The cubic root of 312212494 is about 678.3962306008.

The spelling of 312212494 in words is "three hundred twelve million, two hundred twelve thousand, four hundred ninety-four".