23155023 has 4 divisors (see below), whose sum is σ = 30873368. Its totient is φ = 15436680.

The previous prime is 23155019. The next prime is 23155049. The reversal of 23155023 is 32055132.

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

It is not a de Polignac number, because 23155023 - 2² = 23155019 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 (23155063) 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, 3859168 + ... + 3859173.

It is an arithmetic number, because the mean of its divisors is an integer number (7718342).

Almost surely, 2^23155023 is an apocalyptic number.

23155023 is a deficient number, since it is larger than the sum of its proper divisors (7718345).

23155023 is an equidigital number, since it uses as much as digits as its factorization.

23155023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7718344.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 23155023 is about 4811.9666457697. The cubic root of 23155023 is about 285.0242023152.

The spelling of 23155023 in words is "twenty-three million, one hundred fifty-five thousand, twenty-three".