23183813 has 4 divisors (see below), whose sum is σ = 23194380. Its totient is φ = 23173248.

The previous prime is 23183807. The next prime is 23183833. The reversal of 23183813 is 31838132.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5484964 + 17698849 = 2342^2 + 4207^2 .

It is a cyclic number.

It is not a de Polignac number, because 23183813 - 2¹⁴ = 23167429 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 (23183833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620 + ... + 6837.

It is an arithmetic number, because the mean of its divisors is an integer number (5798595).

Almost surely, 2^23183813 is an apocalyptic number.

It is an amenable number.

23183813 is a deficient number, since it is larger than the sum of its proper divisors (10567).

23183813 is an equidigital number, since it uses as much as digits as its factorization.

23183813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10566.

The product of its digits is 3456, while the sum is 29.

The square root of 23183813 is about 4814.9572168400. The cubic root of 23183813 is about 285.1422825002.

The spelling of 23183813 in words is "twenty-three million, one hundred eighty-three thousand, eight hundred thirteen".