1561382 has 16 divisors (see below), whose sum is σ = 2611440. Its totient is φ = 695808.

The previous prime is 1561367. The next prime is 1561393. The reversal of 1561382 is 2831651.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563 + ... + 1854.

It is an arithmetic number, because the mean of its divisors is an integer number (163215).

2^1561382 is an apocalyptic number.

1561382 is a deficient number, since it is larger than the sum of its proper divisors (1050058).

1561382 is a wasteful number, since it uses less digits than its factorization.

1561382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455.

The product of its digits is 1440, while the sum is 26.

The square root of 1561382 is about 1249.5527199762. The cubic root of 1561382 is about 116.0120379897.

The spelling of 1561382 in words is "one million, five hundred sixty-one thousand, three hundred eighty-two".