22989155 has 8 divisors (see below), whose sum is σ = 31528032. Its totient is φ = 15763968.

The previous prime is 22989143. The next prime is 22989193. The reversal of 22989155 is 55198922.

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 22989155 - 2⁴ = 22989139 is a prime.

It is a super-2 number, since 2×22989155² = 1057002495228050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328382 + ... + 328451.

It is an arithmetic number, because the mean of its divisors is an integer number (3941004).

Almost surely, 2^22989155 is an apocalyptic number.

22989155 is a deficient number, since it is larger than the sum of its proper divisors (8538877).

22989155 is an equidigital number, since it uses as much as digits as its factorization.

22989155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656845.

The product of its digits is 64800, while the sum is 41.

The square root of 22989155 is about 4794.7007205873. The cubic root of 22989155 is about 284.3419927878.

The spelling of 22989155 in words is "twenty-two million, nine hundred eighty-nine thousand, one hundred fifty-five".