531684136 has 16 divisors (see below), whose sum is σ = 997315200. Its totient is φ = 265733424.

The previous prime is 531684119. The next prime is 531684143. The reversal of 531684136 is 631486135.

It is a junction number, because it is equal to n+sod(n) for n = 531684095 and 531684104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9531 + ... + 33973.

It is an arithmetic number, because the mean of its divisors is an integer number (62332200).

Almost surely, 2^531684136 is an apocalyptic number.

It is an amenable number.

531684136 is a deficient number, since it is larger than the sum of its proper divisors (465631064).

531684136 is a wasteful number, since it uses less digits than its factorization.

531684136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27168 (or 27164 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 531684136 is about 23058.2769521055. The cubic root of 531684136 is about 810.1235070522.

The spelling of 531684136 in words is "five hundred thirty-one million, six hundred eighty-four thousand, one hundred thirty-six".