316212646 has 16 divisors (see below), whose sum is σ = 479552400. Its totient is φ = 156368128.

The previous prime is 316212643. The next prime is 316212661. The reversal of 316212646 is 646212613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316212641) 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 7 ways as a sum of consecutive naturals, for example, 127365 + ... + 129823.

It is an arithmetic number, because the mean of its divisors is an integer number (29972025).

Almost surely, 2^316212646 is an apocalyptic number.

316212646 is a deficient number, since it is larger than the sum of its proper divisors (163339754).

316212646 is a wasteful number, since it uses less digits than its factorization.

316212646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3143.

The product of its digits is 10368, while the sum is 31.

The square root of 316212646 is about 17782.3689647921. The cubic root of 316212646 is about 681.2812105220.

The spelling of 316212646 in words is "three hundred sixteen million, two hundred twelve thousand, six hundred forty-six".