1365513889 has 12 divisors (see below), whose sum is σ = 1421513856. Its totient is φ = 1311117392.

The previous prime is 1365513859. The next prime is 1365513893. The reversal of 1365513889 is 9883155631.

It is not a de Polignac number, because 1365513889 - 2⁵ = 1365513857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1365513829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126852 + ... + 137194.

It is an arithmetic number, because the mean of its divisors is an integer number (118459488).

Almost surely, 2^1365513889 is an apocalyptic number.

It is an amenable number.

1365513889 is a deficient number, since it is larger than the sum of its proper divisors (55999967).

1365513889 is an equidigital number, since it uses as much as digits as its factorization.

1365513889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10496 (or 10443 counting only the distinct ones).

The product of its digits is 777600, while the sum is 49.

The square root of 1365513889 is about 36952.8603629002. The cubic root of 1365513889 is about 1109.4269392692.

The spelling of 1365513889 in words is "one billion, three hundred sixty-five million, five hundred thirteen thousand, eight hundred eighty-nine".