312505379 has 8 divisors (see below), whose sum is σ = 318000480. Its totient is φ = 307022400.

The previous prime is 312505343. The next prime is 312505387. The reversal of 312505379 is 973505213.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 312505379 - 2¹² = 312501283 is a prime.

It is a super-2 number, since 2×312505379² = 195319223807867282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312505309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60407 + ... + 65375.

It is an arithmetic number, because the mean of its divisors is an integer number (39750060).

Almost surely, 2^312505379 is an apocalyptic number.

312505379 is a deficient number, since it is larger than the sum of its proper divisors (5495101).

312505379 is a wasteful number, since it uses less digits than its factorization.

312505379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6061.

The product of its (nonzero) digits is 28350, while the sum is 35.

The square root of 312505379 is about 17677.8216701040. The cubic root of 312505379 is about 678.6082976870.

The spelling of 312505379 in words is "three hundred twelve million, five hundred five thousand, three hundred seventy-nine".