1513653231 has 16 divisors (see below), whose sum is σ = 2091535200. Its totient is φ = 972561408.

The previous prime is 1513653217. The next prime is 1513653257. The reversal of 1513653231 is 1323563151.

It is not a de Polignac number, because 1513653231 - 2⁵ = 1513653199 is a prime.

It is a super-2 number, since 2×1513653231² = 4582292207433478722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513653731) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 34215 + ... + 64791.

It is an arithmetic number, because the mean of its divisors is an integer number (130720950).

Almost surely, 2^1513653231 is an apocalyptic number.

1513653231 is a deficient number, since it is larger than the sum of its proper divisors (577881969).

1513653231 is a wasteful number, since it uses less digits than its factorization.

1513653231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31178.

The product of its digits is 8100, while the sum is 30.

The square root of 1513653231 is about 38905.6966394383. The cubic root of 1513653231 is about 1148.1768796625.

The spelling of 1513653231 in words is "one billion, five hundred thirteen million, six hundred fifty-three thousand, two hundred thirty-one".