354312531 has 12 divisors (see below), whose sum is σ = 512092360. Its totient is φ = 236066400.

The previous prime is 354312509. The next prime is 354312559. The reversal of 354312531 is 135213453.

It is not a de Polignac number, because 354312531 - 2⁷ = 354312403 is a prime.

It is a super-2 number, since 2×354312531² = 251074739247251922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 354312495 and 354312504.

It is not an unprimeable number, because it can be changed into a prime (354312571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5280 + ... + 27138.

Almost surely, 2^354312531 is an apocalyptic number.

354312531 is a deficient number, since it is larger than the sum of its proper divisors (157779829).

354312531 is a wasteful number, since it uses less digits than its factorization.

354312531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23666 (or 23663 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 354312531 is about 18823.1913075334. The cubic root of 354312531 is about 707.6125129989.

Adding to 354312531 its reverse (135213453), we get a palindrome (489525984).

The spelling of 354312531 in words is "three hundred fifty-four million, three hundred twelve thousand, five hundred thirty-one".