1531132252 has 48 divisors (see below), whose sum is σ = 3051296640. Its totient is φ = 666436032.

The previous prime is 1531132247. The next prime is 1531132303. The reversal of 1531132252 is 2522311351.

It is a super-2 number, since 2×1531132252² = 4688731946229183008, which contains 22 as substring.

It is a congruent number.

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, 220863 + ... + 227689.

It is an arithmetic number, because the mean of its divisors is an integer number (63568680).

Almost surely, 2^1531132252 is an apocalyptic number.

It is an amenable number.

1531132252 is a deficient number, since it is larger than the sum of its proper divisors (1520164388).

1531132252 is a wasteful number, since it uses less digits than its factorization.

1531132252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7090 (or 7088 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 1531132252 is about 39129.6850485664. The cubic root of 1531132252 is about 1152.5795283306.

The spelling of 1531132252 in words is "one billion, five hundred thirty-one million, one hundred thirty-two thousand, two hundred fifty-two".