342912531 has 16 divisors (see below), whose sum is σ = 493958304. Its totient is φ = 210349824.

The previous prime is 342912529. The next prime is 342912541. The reversal of 342912531 is 135219243.

It is not a de Polignac number, because 342912531 - 2¹ = 342912529 is a prime.

It is a super-2 number, since 2×342912531² = 235178007833651922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (342912541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1506 + ... + 26231.

It is an arithmetic number, because the mean of its divisors is an integer number (30872394).

Almost surely, 2^342912531 is an apocalyptic number.

342912531 is a deficient number, since it is larger than the sum of its proper divisors (151045773).

342912531 is a wasteful number, since it uses less digits than its factorization.

342912531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28070.

The product of its digits is 6480, while the sum is 30.

The square root of 342912531 is about 18517.8975858492. The cubic root of 342912531 is about 699.9404922202.

The spelling of 342912531 in words is "three hundred forty-two million, nine hundred twelve thousand, five hundred thirty-one".