23166213 has 16 divisors (see below), whose sum is σ = 35728896. Its totient is φ = 13077360.

The previous prime is 23166211. The next prime is 23166217. The reversal of 23166213 is 31266132.

It is a happy number.

It is not a de Polignac number, because 23166213 - 2¹ = 23166211 is a prime.

It is a super-2 number, since 2×23166213² = 1073346849522738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23166211) 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, 4903 + ... + 8388.

It is an arithmetic number, because the mean of its divisors is an integer number (2233056).

Almost surely, 2^23166213 is an apocalyptic number.

It is an amenable number.

23166213 is a deficient number, since it is larger than the sum of its proper divisors (12562683).

23166213 is a wasteful number, since it uses less digits than its factorization.

23166213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13384.

The product of its digits is 1296, while the sum is 24.

The square root of 23166213 is about 4813.1292315914. The cubic root of 23166213 is about 285.0701089447.

The spelling of 23166213 in words is "twenty-three million, one hundred sixty-six thousand, two hundred thirteen".