1315435520 has 264 divisors, whose sum is σ = 3861067776. Its totient is φ = 421134336.

The previous prime is 1315435487. The next prime is 1315435579. The reversal of 1315435520 is 255345131.

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, 10357697 + ... + 10357823.

Almost surely, 2^1315435520 is an apocalyptic number.

1315435520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1315435520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1930533888).

1315435520 is an abundant number, since it is smaller than the sum of its proper divisors (2545632256).

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

1315435520 is a wasteful number, since it uses less digits than its factorization.

1315435520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 1315435520 is about 36268.9332625044. The cubic root of 1315435520 is about 1095.6954416878.

The spelling of 1315435520 in words is "one billion, three hundred fifteen million, four hundred thirty-five thousand, five hundred twenty".