1369522891 has 6 divisors (see below), whose sum is σ = 1505343476. Its totient is φ = 1245020700.

The previous prime is 1369522871. The next prime is 1369522897. The reversal of 1369522891 is 1982259631.

It is not a de Polignac number, because 1369522891 - 2⁵ = 1369522859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1369522897) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 5659065 + ... + 5659306.

Almost surely, 2^1369522891 is an apocalyptic number.

1369522891 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1369522891 is a deficient number, since it is larger than the sum of its proper divisors (135820585).

1369522891 is a wasteful number, since it uses less digits than its factorization.

1369522891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11318393 (or 11318382 counting only the distinct ones).

The product of its digits is 233280, while the sum is 46.

The square root of 1369522891 is about 37007.0654199978. The cubic root of 1369522891 is about 1110.5115978944.

The spelling of 1369522891 in words is "one billion, three hundred sixty-nine million, five hundred twenty-two thousand, eight hundred ninety-one".