23210045 has 4 divisors (see below), whose sum is σ = 27852060. Its totient is φ = 18568032.

The previous prime is 23210021. The next prime is 23210053. The reversal of 23210045 is 54001232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16924996 + 6285049 = 4114^2 + 2507^2 .

It is a cyclic number.

It is not a de Polignac number, because 23210045 - 2¹⁸ = 22947901 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 2321000 + ... + 2321009.

It is an arithmetic number, because the mean of its divisors is an integer number (6963015).

Almost surely, 2^23210045 is an apocalyptic number.

It is an amenable number.

23210045 is a deficient number, since it is larger than the sum of its proper divisors (4642015).

23210045 is an equidigital number, since it uses as much as digits as its factorization.

23210045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4642014.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 23210045 is about 4817.6804584779. The cubic root of 23210045 is about 285.2497861426.

Adding to 23210045 its reverse (54001232), we get a palindrome (77211277).

The spelling of 23210045 in words is "twenty-three million, two hundred ten thousand, forty-five".