312542079 has 4 divisors (see below), whose sum is σ = 416722776. Its totient is φ = 208361384.

The previous prime is 312542053. The next prime is 312542117. The reversal of 312542079 is 970245213.

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 312542079 - 2¹³ = 312533887 is a prime.

It is a super-2 number, since 2×312542079² = 195365102291284482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312542179) 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, 52090344 + ... + 52090349.

It is an arithmetic number, because the mean of its divisors is an integer number (104180694).

Almost surely, 2^312542079 is an apocalyptic number.

312542079 is a deficient number, since it is larger than the sum of its proper divisors (104180697).

312542079 is a wasteful number, since it uses less digits than its factorization.

312542079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104180696.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 312542079 is about 17678.8596634511. The cubic root of 312542079 is about 678.6348614428.

It can be divided in two parts, 31254 and 2079, that added together give a palindrome (33333).

The spelling of 312542079 in words is "three hundred twelve million, five hundred forty-two thousand, seventy-nine".