531398130 has 32 divisors (see below), whose sum is σ = 1306464768. Its totient is φ = 138249600.

The previous prime is 531398123. The next prime is 531398149. The reversal of 531398130 is 31893135.

It is a junction number, because it is equal to n+sod(n) for n = 531398091 and 531398100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214786 + ... + 217245.

It is an arithmetic number, because the mean of its divisors is an integer number (40827024).

Almost surely, 2^531398130 is an apocalyptic number.

531398130 is an abundant number, since it is smaller than the sum of its proper divisors (775066638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531398130 is a wasteful number, since it uses less digits than its factorization.

531398130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432082.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 531398130 is about 23052.0743101353. The cubic root of 531398130 is about 809.9782191979.

The spelling of 531398130 in words is "five hundred thirty-one million, three hundred ninety-eight thousand, one hundred thirty".