23252981 has 8 divisors (see below), whose sum is σ = 23859264. Its totient is φ = 22649760.

The previous prime is 23252963. The next prime is 23252987. The reversal of 23252981 is 18925232.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 23252981 - 2⁶ = 23252917 is a prime.

It is a super-2 number, since 2×23252981² = 1081402250772722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23252987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26705 + ... + 27561.

It is an arithmetic number, because the mean of its divisors is an integer number (2982408).

Almost surely, 2^23252981 is an apocalyptic number.

It is an amenable number.

23252981 is a deficient number, since it is larger than the sum of its proper divisors (606283).

23252981 is an equidigital number, since it uses as much as digits as its factorization.

23252981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531.

The product of its digits is 8640, while the sum is 32.

The square root of 23252981 is about 4822.1344858890. The cubic root of 23252981 is about 285.4255712450.

The spelling of 23252981 in words is "twenty-three million, two hundred fifty-two thousand, nine hundred eighty-one".