1369557 has 12 divisors (see below), whose sum is σ = 2260960. Its totient is φ = 782568.

The previous prime is 1369541. The next prime is 1369559. The reversal of 1369557 is 7559631.

It is a happy number.

It is not a de Polignac number, because 1369557 - 2⁴ = 1369541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1369559) 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, 10807 + ... + 10932.

2^1369557 is an apocalyptic number.

It is an amenable number.

1369557 is a deficient number, since it is larger than the sum of its proper divisors (891403).

1369557 is a wasteful number, since it uses less digits than its factorization.

1369557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21752 (or 21749 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 1369557 is about 1170.2807355502. The cubic root of 1369557 is about 111.0520817194.

The spelling of 1369557 in words is "one million, three hundred sixty-nine thousand, five hundred fifty-seven".