1523631532 has 12 divisors (see below), whose sum is σ = 2681252280. Its totient is φ = 757559456.

The previous prime is 1523631479. The next prime is 1523631553. The reversal of 1523631532 is 2351363251.

It is a junction number, because it is equal to n+sod(n) for n = 1523631494 and 1523631503.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1063273 + ... + 1064704.

It is an arithmetic number, because the mean of its divisors is an integer number (223437690).

Almost surely, 2^1523631532 is an apocalyptic number.

It is an amenable number.

1523631532 is a deficient number, since it is larger than the sum of its proper divisors (1157620748).

1523631532 is a wasteful number, since it uses less digits than its factorization.

1523631532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128160 (or 2128158 counting only the distinct ones).

The product of its digits is 16200, while the sum is 31.

The square root of 1523631532 is about 39033.7230097258. The cubic root of 1523631532 is about 1150.6943587404.

Adding to 1523631532 its reverse (2351363251), we get a palindrome (3874994783).

The spelling of 1523631532 in words is "one billion, five hundred twenty-three million, six hundred thirty-one thousand, five hundred thirty-two".