22978123 has 8 divisors (see below), whose sum is σ = 26435840. Its totient is φ = 19564200.

The previous prime is 22978117. The next prime is 22978133. The reversal of 22978123 is 32187922.

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 22978123 - 2⁵ = 22978091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22978133) 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, 9813 + ... + 11926.

It is an arithmetic number, because the mean of its divisors is an integer number (3304480).

Almost surely, 2^22978123 is an apocalyptic number.

22978123 is a deficient number, since it is larger than the sum of its proper divisors (3457717).

22978123 is a wasteful number, since it uses less digits than its factorization.

22978123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21897.

The product of its digits is 12096, while the sum is 34.

The square root of 22978123 is about 4793.5501457688. The cubic root of 22978123 is about 284.2965023124.

The spelling of 22978123 in words is "twenty-two million, nine hundred seventy-eight thousand, one hundred twenty-three".