1313473536 has 88 divisors (see below), whose sum is σ = 3889955040. Its totient is φ = 437815296.

The previous prime is 1313473531. The next prime is 1313473541. The reversal of 1313473536 is 6353743131.

1313473536 is a `hidden beast` number, since 131 + 3 + 473 + 53 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (1313473531) and next prime (1313473541).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1313473536.

It is not an unprimeable number, because it can be changed into a prime (1313473531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3895 + ... + 51401.

Almost surely, 2^1313473536 is an apocalyptic number.

1313473536 is a gapful number since it is divisible by the number (16) 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 1313473536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1944977520).

1313473536 is an abundant number, since it is smaller than the sum of its proper divisors (2576481504).

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

1313473536 is an equidigital number, since it uses as much as digits as its factorization.

1313473536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47536 (or 47512 counting only the distinct ones).

The product of its digits is 68040, while the sum is 36.

The square root of 1313473536 is about 36241.8754481608. The cubic root of 1313473536 is about 1095.1504240711.

The spelling of 1313473536 in words is "one billion, three hundred thirteen million, four hundred seventy-three thousand, five hundred thirty-six".