11458561 has 12 divisors (see below), whose sum is σ = 12574720. Its totient is φ = 10428480.

The previous prime is 11458549. The next prime is 11458571. The reversal of 11458561 is 16585411.

It is not a de Polignac number, because 11458561 - 2⁵ = 11458529 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11458571) 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, 8320 + ... + 9598.

Almost surely, 2^11458561 is an apocalyptic number.

It is an amenable number.

11458561 is a deficient number, since it is larger than the sum of its proper divisors (1116159).

11458561 is a wasteful number, since it uses less digits than its factorization.

11458561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344 (or 1327 counting only the distinct ones).

The product of its digits is 4800, while the sum is 31.

The square root of 11458561 is about 3385.0496303599. The cubic root of 11458561 is about 225.4464288684.

The spelling of 11458561 in words is "eleven million, four hundred fifty-eight thousand, five hundred sixty-one".