531120634 has 16 divisors (see below), whose sum is σ = 880110720. Its totient is φ = 238361760.

The previous prime is 531120617. The next prime is 531120643. The reversal of 531120634 is 436021135.

It is a junction number, because it is equal to n+sod(n) for n = 531120599 and 531120608.

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, 151059 + ... + 154534.

It is an arithmetic number, because the mean of its divisors is an integer number (55006920).

Almost surely, 2^531120634 is an apocalyptic number.

531120634 is a deficient number, since it is larger than the sum of its proper divisors (348990086).

531120634 is a wasteful number, since it uses less digits than its factorization.

531120634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305685.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 531120634 is about 23046.0546298059. The cubic root of 531120634 is about 809.8372044930.

Adding to 531120634 its reverse (436021135), we get a palindrome (967141769).

The spelling of 531120634 in words is "five hundred thirty-one million, one hundred twenty thousand, six hundred thirty-four".