23091235 has 4 divisors (see below), whose sum is σ = 27709488. Its totient is φ = 18472984.

The previous prime is 23091227. The next prime is 23091281. The reversal of 23091235 is 53219032.

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 23091235 - 2³ = 23091227 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2309119 + ... + 2309128.

It is an arithmetic number, because the mean of its divisors is an integer number (6927372).

Almost surely, 2^23091235 is an apocalyptic number.

23091235 is a deficient number, since it is larger than the sum of its proper divisors (4618253).

23091235 is an equidigital number, since it uses as much as digits as its factorization.

23091235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4618252.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 23091235 is about 4805.3340154458. The cubic root of 23091235 is about 284.7622311556.

The spelling of 23091235 in words is "twenty-three million, ninety-one thousand, two hundred thirty-five".