15131243532 has 24 divisors (see below), whose sum is σ = 35630148400. Its totient is φ = 4997474496.

The previous prime is 15131243527. The next prime is 15131243549. The reversal of 15131243532 is 23534213151.

It is a super-3 number, since 3×15131243532³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15131243532.

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, 5782807 + ... + 5785422.

Almost surely, 2^15131243532 is an apocalyptic number.

15131243532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15131243532 is an abundant number, since it is smaller than the sum of its proper divisors (20498904868).

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

15131243532 is a wasteful number, since it uses less digits than its factorization.

15131243532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11568345 (or 11568343 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

Adding to 15131243532 its reverse (23534213151), we get a palindrome (38665456683).

The spelling of 15131243532 in words is "fifteen billion, one hundred thirty-one million, two hundred forty-three thousand, five hundred thirty-two".