23153971 has 8 divisors (see below), whose sum is σ = 24361344. Its totient is φ = 21977280.

The previous prime is 23153941. The next prime is 23153981. The reversal of 23153971 is 17935132.

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 23153971 - 2⁷ = 23153843 is a prime.

It is a super-2 number, since 2×23153971² = 1072212746137682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23153941) 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, 6115 + ... + 9148.

It is an arithmetic number, because the mean of its divisors is an integer number (3045168).

Almost surely, 2^23153971 is an apocalyptic number.

23153971 is a deficient number, since it is larger than the sum of its proper divisors (1207373).

23153971 is a wasteful number, since it uses less digits than its factorization.

23153971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15341.

The product of its digits is 5670, while the sum is 31.

The square root of 23153971 is about 4811.8573337122. The cubic root of 23153971 is about 285.0198857572.

The spelling of 23153971 in words is "twenty-three million, one hundred fifty-three thousand, nine hundred seventy-one".