23322155 has 4 divisors (see below), whose sum is σ = 27986592. Its totient is φ = 18657720.

The previous prime is 23322149. The next prime is 23322179. The reversal of 23322155 is 55122332.

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

It is not a de Polignac number, because 23322155 - 2¹⁴ = 23305771 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23322155.

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, 2332211 + ... + 2332220.

It is an arithmetic number, because the mean of its divisors is an integer number (6996648).

Almost surely, 2^23322155 is an apocalyptic number.

23322155 is a deficient number, since it is larger than the sum of its proper divisors (4664437).

23322155 is an equidigital number, since it uses as much as digits as its factorization.

23322155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664436.

The product of its digits is 1800, while the sum is 23.

The square root of 23322155 is about 4829.3017093572. The cubic root of 23322155 is about 285.7083232684.

Adding to 23322155 its reverse (55122332), we get a palindrome (78444487).

The spelling of 23322155 in words is "twenty-three million, three hundred twenty-two thousand, one hundred fifty-five".