113426561 has 12 divisors (see below), whose sum is σ = 122511312. Its totient is φ = 104943384.

The previous prime is 113426549. The next prime is 113426581. The reversal of 113426561 is 165624311.

It is a happy number.

It is not a de Polignac number, because 113426561 - 2¹⁰ = 113425537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113426531) 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, 11870 + ... + 19176.

It is an arithmetic number, because the mean of its divisors is an integer number (10209276).

Almost surely, 2^113426561 is an apocalyptic number.

It is an amenable number.

113426561 is a deficient number, since it is larger than the sum of its proper divisors (9084751).

113426561 is an equidigital number, since it uses as much as digits as its factorization.

113426561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7388 (or 7369 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 113426561 is about 10650.1906555704. The cubic root of 113426561 is about 484.0663812261.

The spelling of 113426561 in words is "one hundred thirteen million, four hundred twenty-six thousand, five hundred sixty-one".