22871145 has 32 divisors (see below), whose sum is σ = 40360320. Its totient is φ = 10967040.

The previous prime is 22871129. The next prime is 22871161. The reversal of 22871145 is 54117822.

It is an interprime number because it is at equal distance from previous prime (22871129) and next prime (22871161).

It is not a de Polignac number, because 22871145 - 2⁴ = 22871129 is a prime.

It is a super-2 number, since 2×22871145² = 1046178547222050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15291 + ... + 16719.

It is an arithmetic number, because the mean of its divisors is an integer number (1261260).

Almost surely, 2^22871145 is an apocalyptic number.

It is an amenable number.

22871145 is a deficient number, since it is larger than the sum of its proper divisors (17489175).

22871145 is a wasteful number, since it uses less digits than its factorization.

22871145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545.

The product of its digits is 4480, while the sum is 30.

The square root of 22871145 is about 4782.3785922907. The cubic root of 22871145 is about 283.8546212560.

Adding to 22871145 its reverse (54117822), we get a palindrome (76988967).

The spelling of 22871145 in words is "twenty-two million, eight hundred seventy-one thousand, one hundred forty-five".