23564121 has 16 divisors (see below), whose sum is σ = 37469184. Its totient is φ = 12879504.

The previous prime is 23564111. The next prime is 23564143. The reversal of 23564121 is 12146532.

It is not a de Polignac number, because 23564121 - 2⁵ = 23564089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23564091 and 23564100.

It is not an unprimeable number, because it can be changed into a prime (23564111) 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, 23911 + ... + 24876.

It is an arithmetic number, because the mean of its divisors is an integer number (2341824).

Almost surely, 2^23564121 is an apocalyptic number.

23564121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23564121 is a deficient number, since it is larger than the sum of its proper divisors (13905063).

23564121 is a wasteful number, since it uses less digits than its factorization.

23564121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48820.

The product of its digits is 1440, while the sum is 24.

The square root of 23564121 is about 4854.2889283602. The cubic root of 23564121 is about 286.6929948477.

The spelling of 23564121 in words is "twenty-three million, five hundred sixty-four thousand, one hundred twenty-one".