1517138732 has 12 divisors (see below), whose sum is σ = 2658486936. Its totient is φ = 757571040.

The previous prime is 1517138723. The next prime is 1517138759. The reversal of 1517138732 is 2378317151.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246158 + ... + 252245.

It is an arithmetic number, because the mean of its divisors is an integer number (221540578).

Almost surely, 2^1517138732 is an apocalyptic number.

It is an amenable number.

1517138732 is a deficient number, since it is larger than the sum of its proper divisors (1141348204).

1517138732 is a wasteful number, since it uses less digits than its factorization.

1517138732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499168 (or 499166 counting only the distinct ones).

The product of its digits is 35280, while the sum is 38.

The square root of 1517138732 is about 38950.4651063373. The cubic root of 1517138732 is about 1149.0575093236.

The spelling of 1517138732 in words is "one billion, five hundred seventeen million, one hundred thirty-eight thousand, seven hundred thirty-two".