1513031312 has 60 divisors (see below), whose sum is σ = 3226734324. Its totient is φ = 686799360.

The previous prime is 1513031279. The next prime is 1513031327. The reversal of 1513031312 is 2131303151.

It can be written as a sum of positive squares in 6 ways, for example, as 1076889856 + 436141456 = 32816^2 + 20884^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160358 + ... + 169530.

Almost surely, 2^1513031312 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 1513031312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1613367162).

1513031312 is an abundant number, since it is smaller than the sum of its proper divisors (1713703012).

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

1513031312 is a wasteful number, since it uses less digits than its factorization.

1513031312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9268 (or 9249 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 1513031312 is about 38897.7031712671. The cubic root of 1513031312 is about 1148.0196065561.

Adding to 1513031312 its reverse (2131303151), we get a palindrome (3644334463).

The spelling of 1513031312 in words is "one billion, five hundred thirteen million, thirty-one thousand, three hundred twelve".