312080631 has 4 divisors (see below), whose sum is σ = 416107512. Its totient is φ = 208053752.

The previous prime is 312080617. The next prime is 312080651. The reversal of 312080631 is 136080213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312080631 - 2²⁶ = 244971767 is a prime.

It is a super-2 number, since 2×312080631² = 194788640490716322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312080651) 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, 52013436 + ... + 52013441.

It is an arithmetic number, because the mean of its divisors is an integer number (104026878).

Almost surely, 2^312080631 is an apocalyptic number.

312080631 is a deficient number, since it is larger than the sum of its proper divisors (104026881).

312080631 is a wasteful number, since it uses less digits than its factorization.

312080631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104026880.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 312080631 is about 17665.8040009505. The cubic root of 312080631 is about 678.3007102307.

The spelling of 312080631 in words is "three hundred twelve million, eighty thousand, six hundred thirty-one".