23045213 has 4 divisors (see below), whose sum is σ = 23115168. Its totient is φ = 22975260.

The previous prime is 23045207. The next prime is 23045219. The reversal of 23045213 is 31254032.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (23045207) and next prime (23045219).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23045213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23045219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34481 + ... + 35142.

It is an arithmetic number, because the mean of its divisors is an integer number (5778792).

Almost surely, 2^23045213 is an apocalyptic number.

It is an amenable number.

23045213 is a deficient number, since it is larger than the sum of its proper divisors (69955).

23045213 is an equidigital number, since it uses as much as digits as its factorization.

23045213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69954.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 23045213 is about 4800.5429901210. The cubic root of 23045213 is about 284.5729234871.

Adding to 23045213 its reverse (31254032), we get a palindrome (54299245).

The spelling of 23045213 in words is "twenty-three million, forty-five thousand, two hundred thirteen".