1523131332 has 24 divisors (see below), whose sum is σ = 3575781216. Its totient is φ = 504595008.

The previous prime is 1523131321. The next prime is 1523131361. The reversal of 1523131332 is 2331313251.

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, 387393 + ... + 391304.

It is an arithmetic number, because the mean of its divisors is an integer number (148990884).

Almost surely, 2^1523131332 is an apocalyptic number.

1523131332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1523131332 is an abundant number, since it is smaller than the sum of its proper divisors (2052649884).

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

1523131332 is a wasteful number, since it uses less digits than its factorization.

1523131332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778867 (or 778865 counting only the distinct ones).

The product of its digits is 1620, while the sum is 24.

The square root of 1523131332 is about 39027.3152035853. The cubic root of 1523131332 is about 1150.5684227111.

Adding to 1523131332 its reverse (2331313251), we get a palindrome (3854444583).

The spelling of 1523131332 in words is "one billion, five hundred twenty-three million, one hundred thirty-one thousand, three hundred thirty-two".