1513731128 has 96 divisors (see below), whose sum is σ = 3582860400. Its totient is φ = 594252288.

The previous prime is 1513731101. The next prime is 1513731173. The reversal of 1513731128 is 8211373151.

It is a junction number, because it is equal to n+sod(n) for n = 1513731094 and 1513731103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 707276 + ... + 709412.

Almost surely, 2^1513731128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1513731128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1791430200).

1513731128 is an abundant number, since it is smaller than the sum of its proper divisors (2069129272).

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

1513731128 is a wasteful number, since it uses less digits than its factorization.

1513731128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309 (or 2298 counting only the distinct ones).

The product of its digits is 5040, while the sum is 32.

The square root of 1513731128 is about 38906.6977267411. The cubic root of 1513731128 is about 1148.1965754991.

The spelling of 1513731128 in words is "one billion, five hundred thirteen million, seven hundred thirty-one thousand, one hundred twenty-eight".