313231534 has 16 divisors (see below), whose sum is σ = 585783936. Its totient is φ = 122038200.

The previous prime is 313231517. The next prime is 313231559. The reversal of 313231534 is 435132313.

It is a super-2 number, since 2×313231534² = 196227987783986312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313231499 and 313231508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1016832 + ... + 1017139.

It is an arithmetic number, because the mean of its divisors is an integer number (36611496).

Almost surely, 2^313231534 is an apocalyptic number.

313231534 is a deficient number, since it is larger than the sum of its proper divisors (272552402).

313231534 is a wasteful number, since it uses less digits than its factorization.

313231534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033991.

The product of its digits is 3240, while the sum is 25.

The square root of 313231534 is about 17698.3483410176. The cubic root of 313231534 is about 679.1335085087.

Adding to 313231534 its reverse (435132313), we get a palindrome (748363847).

The spelling of 313231534 in words is "three hundred thirteen million, two hundred thirty-one thousand, five hundred thirty-four".