23065451 has 4 divisors (see below), whose sum is σ = 23343432. Its totient is φ = 22787472.

The previous prime is 23065439. The next prime is 23065453. The reversal of 23065451 is 15456032.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23065451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23065451.

It is not an unprimeable number, because it can be changed into a prime (23065453) 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, 138866 + ... + 139031.

It is an arithmetic number, because the mean of its divisors is an integer number (5835858).

Almost surely, 2^23065451 is an apocalyptic number.

23065451 is a deficient number, since it is larger than the sum of its proper divisors (277981).

23065451 is an equidigital number, since it uses as much as digits as its factorization.

23065451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277980.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 23065451 is about 4802.6504140943. The cubic root of 23065451 is about 284.6562018346.

The spelling of 23065451 in words is "twenty-three million, sixty-five thousand, four hundred fifty-one".