23355231 has 4 divisors (see below), whose sum is σ = 31140312. Its totient is φ = 15570152.

The previous prime is 23355191. The next prime is 23355247. The reversal of 23355231 is 13255332.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 23355231 - 2¹³ = 23347039 is a prime.

It is a super-2 number, since 2×23355231² = 1090933630126722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23355271) 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, 3892536 + ... + 3892541.

It is an arithmetic number, because the mean of its divisors is an integer number (7785078).

Almost surely, 2^23355231 is an apocalyptic number.

23355231 is a deficient number, since it is larger than the sum of its proper divisors (7785081).

23355231 is an equidigital number, since it uses as much as digits as its factorization.

23355231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7785080.

The product of its digits is 2700, while the sum is 24.

The square root of 23355231 is about 4832.7250076949. The cubic root of 23355231 is about 285.8433254380.

The spelling of 23355231 in words is "twenty-three million, three hundred fifty-five thousand, two hundred thirty-one".