1313565492 has 24 divisors (see below), whose sum is σ = 3083794336. Its totient is φ = 435168288.

The previous prime is 1313565481. The next prime is 1313565493. The reversal of 1313565492 is 2945653131.

1313565492 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1313565492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313565493) 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, 333823 + ... + 337734.

Almost surely, 2^1313565492 is an apocalyptic number.

1313565492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1313565492 is an abundant number, since it is smaller than the sum of its proper divisors (1770228844).

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

1313565492 is a wasteful number, since it uses less digits than its factorization.

1313565492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671727 (or 671725 counting only the distinct ones).

The product of its digits is 97200, while the sum is 39.

The square root of 1313565492 is about 36243.1440689132. The cubic root of 1313565492 is about 1095.1759805567.

The spelling of 1313565492 in words is "one billion, three hundred thirteen million, five hundred sixty-five thousand, four hundred ninety-two".