312372819 has 12 divisors (see below), whose sum is σ = 492223992. Its totient is φ = 189316800.

The previous prime is 312372817. The next prime is 312372829. The reversal of 312372819 is 918273213.

It is not a de Polignac number, because 312372819 - 2¹ = 312372817 is a prime.

It is a super-2 number, since 2×312372819² = 195153556100013522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (312372811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1577542 + ... + 1577739.

It is an arithmetic number, because the mean of its divisors is an integer number (41018666).

Almost surely, 2^312372819 is an apocalyptic number.

312372819 is a deficient number, since it is larger than the sum of its proper divisors (179851173).

312372819 is a wasteful number, since it uses less digits than its factorization.

312372819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155298 (or 3155295 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 312372819 is about 17674.0719416890. The cubic root of 312372819 is about 678.5123323647.

The spelling of 312372819 in words is "three hundred twelve million, three hundred seventy-two thousand, eight hundred nineteen".