23155305 has 8 divisors (see below), whose sum is σ = 37048512. Its totient is φ = 12349488.

The previous prime is 23155289. The next prime is 23155313. The reversal of 23155305 is 50355132.

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

It is not a de Polignac number, because 23155305 - 2⁴ = 23155289 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 771829 + ... + 771858.

It is an arithmetic number, because the mean of its divisors is an integer number (4631064).

Almost surely, 2^23155305 is an apocalyptic number.

It is an amenable number.

23155305 is a deficient number, since it is larger than the sum of its proper divisors (13893207).

23155305 is a wasteful number, since it uses less digits than its factorization.

23155305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543695.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 23155305 is about 4811.9959476292. The cubic root of 23155305 is about 285.0253593932.

The spelling of 23155305 in words is "twenty-three million, one hundred fifty-five thousand, three hundred five".