312080015 has 16 divisors (see below), whose sum is σ = 414206688. Its totient is φ = 224228736.

The previous prime is 312080011. The next prime is 312080023. The reversal of 312080015 is 510080213.

It is a cyclic number.

It is not a de Polignac number, because 312080015 - 2² = 312080011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312080011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62477 + ... + 67286.

It is an arithmetic number, because the mean of its divisors is an integer number (25887918).

Almost surely, 2^312080015 is an apocalyptic number.

312080015 is a deficient number, since it is larger than the sum of its proper divisors (102126673).

312080015 is a wasteful number, since it uses less digits than its factorization.

312080015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129818.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 312080015 is about 17665.7865661283. The cubic root of 312080015 is about 678.3002639427.

The spelling of 312080015 in words is "three hundred twelve million, eighty thousand, fifteen".