1361885 has 16 divisors (see below), whose sum is σ = 1886976. Its totient is φ = 924288.

The previous prime is 1361879. The next prime is 1361903. The reversal of 1361885 is 5881631.

1361885 = 180² + 181² + ... + 214².

It is a cyclic number.

It is not a de Polignac number, because 1361885 - 2⁸ = 1361629 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5729 + ... + 5961.

It is an arithmetic number, because the mean of its divisors is an integer number (117936).

2^1361885 is an apocalyptic number.

It is an amenable number.

1361885 is a deficient number, since it is larger than the sum of its proper divisors (525091).

1361885 is a wasteful number, since it uses less digits than its factorization.

1361885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412.

The product of its digits is 5760, while the sum is 32.

The square root of 1361885 is about 1166.9982862027. The cubic root of 1361885 is about 110.8443290326.

The spelling of 1361885 in words is "one million, three hundred sixty-one thousand, eight hundred eighty-five".