531361272 has 64 divisors (see below), whose sum is σ = 1492807680. Its totient is φ = 156385152.

The previous prime is 531361261. The next prime is 531361279. The reversal of 531361272 is 272163135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531361279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29848 + ... + 44199.

It is an arithmetic number, because the mean of its divisors is an integer number (23325120).

Almost surely, 2^531361272 is an apocalyptic number.

531361272 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

531361272 is an abundant number, since it is smaller than the sum of its proper divisors (961446408).

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

531361272 is a wasteful number, since it uses less digits than its factorization.

531361272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74092 (or 74088 counting only the distinct ones).

The product of its digits is 7560, while the sum is 30.

The square root of 531361272 is about 23051.2748454397. The cubic root of 531361272 is about 809.9594919538.

The spelling of 531361272 in words is "five hundred thirty-one million, three hundred sixty-one thousand, two hundred seventy-two".