1361564 has 12 divisors (see below), whose sum is σ = 2523024. Its totient is φ = 640704.

The previous prime is 1361533. The next prime is 1361573. The reversal of 1361564 is 4651631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9944 + ... + 10079.

It is an arithmetic number, because the mean of its divisors is an integer number (210252).

2^1361564 is an apocalyptic number.

It is an amenable number.

1361564 is a deficient number, since it is larger than the sum of its proper divisors (1161460).

1361564 is a wasteful number, since it uses less digits than its factorization.

1361564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20044 (or 20042 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 1361564 is about 1166.8607457619. The cubic root of 1361564 is about 110.8356195783.

The spelling of 1361564 in words is "one million, three hundred sixty-one thousand, five hundred sixty-four".