22971455 has 16 divisors (see below), whose sum is σ = 29888544. Its totient is φ = 16848000.

The previous prime is 22971449. The next prime is 22971461. The reversal of 22971455 is 55417922.

It is an interprime number because it is at equal distance from previous prime (22971449) and next prime (22971461).

It is a de Polignac number, because none of the positive numbers 2^k-22971455 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9080 + ... + 11330.

It is an arithmetic number, because the mean of its divisors is an integer number (1868034).

Almost surely, 2^22971455 is an apocalyptic number.

22971455 is a deficient number, since it is larger than the sum of its proper divisors (6917089).

22971455 is a wasteful number, since it uses less digits than its factorization.

22971455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426.

The product of its digits is 25200, while the sum is 35.

The square root of 22971455 is about 4792.8545773891. The cubic root of 22971455 is about 284.2689997400.

The spelling of 22971455 in words is "twenty-two million, nine hundred seventy-one thousand, four hundred fifty-five".