23028251 has 4 divisors (see below), whose sum is σ = 24382872. Its totient is φ = 21673632.

The previous prime is 23028241. The next prime is 23028259. The reversal of 23028251 is 15282032.

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-23028251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23028259) 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, 677285 + ... + 677318.

It is an arithmetic number, because the mean of its divisors is an integer number (6095718).

Almost surely, 2^23028251 is an apocalyptic number.

23028251 is a deficient number, since it is larger than the sum of its proper divisors (1354621).

23028251 is a wasteful number, since it uses less digits than its factorization.

23028251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354620.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 23028251 is about 4798.7759897707. The cubic root of 23028251 is about 284.5030881498.

The spelling of 23028251 in words is "twenty-three million, twenty-eight thousand, two hundred fifty-one".