531656134 has 16 divisors (see below), whose sum is σ = 803340720. Its totient is φ = 263881440.

The previous prime is 531656123. The next prime is 531656149. The reversal of 531656134 is 431656135.

It is a self number, because there is not a number n which added to its sum of digits gives 531656134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304504 + ... + 306244.

It is an arithmetic number, because the mean of its divisors is an integer number (50208795).

Almost surely, 2^531656134 is an apocalyptic number.

531656134 is a deficient number, since it is larger than the sum of its proper divisors (271684586).

531656134 is a wasteful number, since it uses less digits than its factorization.

531656134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775.

The product of its digits is 32400, while the sum is 34.

The square root of 531656134 is about 23057.6697434932. The cubic root of 531656134 is about 810.1092846501.

Subtracting from 531656134 its reverse (431656135), we obtain a palindrome (99999999).

The spelling of 531656134 in words is "five hundred thirty-one million, six hundred fifty-six thousand, one hundred thirty-four".