11312861 has 16 divisors (see below), whose sum is σ = 13716480. Its totient is φ = 9123840.

The previous prime is 11312839. The next prime is 11312863. The reversal of 11312861 is 16821311.

It is a cyclic number.

It is not a de Polignac number, because 11312861 - 2¹⁴ = 11296477 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 (11312863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7325 + ... + 8733.

It is an arithmetic number, because the mean of its divisors is an integer number (857280).

Almost surely, 2^11312861 is an apocalyptic number.

It is an amenable number.

11312861 is a deficient number, since it is larger than the sum of its proper divisors (2403619).

11312861 is a wasteful number, since it uses less digits than its factorization.

11312861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484.

The product of its digits is 288, while the sum is 23.

The square root of 11312861 is about 3363.4596771777. The cubic root of 11312861 is about 224.4868040187.

The spelling of 11312861 in words is "eleven million, three hundred twelve thousand, eight hundred sixty-one".