23455281 has 8 divisors (see below), whose sum is σ = 31374880. Its totient is φ = 15586272.

The previous prime is 23455261. The next prime is 23455301. The reversal of 23455281 is 18255432.

It is an interprime number because it is at equal distance from previous prime (23455261) and next prime (23455301).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23455281 - 2⁶ = 23455217 is a prime.

It is a super-2 number, since 2×23455281² = 1100300413577922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23455261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11551 + ... + 13428.

It is an arithmetic number, because the mean of its divisors is an integer number (3921860).

Almost surely, 2^23455281 is an apocalyptic number.

It is an amenable number.

23455281 is a deficient number, since it is larger than the sum of its proper divisors (7919599).

23455281 is a wasteful number, since it uses less digits than its factorization.

23455281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25295.

The product of its digits is 9600, while the sum is 30.

The square root of 23455281 is about 4843.0652483732. The cubic root of 23455281 is about 286.2509127053.

It can be divided in two parts, 2345 and 5281, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 23455281 in words is "twenty-three million, four hundred fifty-five thousand, two hundred eighty-one".