22541913 has 6 divisors (see below), whose sum is σ = 32560554. Its totient is φ = 15027936.

The previous prime is 22541899. The next prime is 22541941. The reversal of 22541913 is 31914522.

It can be written as a sum of positive squares in only one way, i.e., 21790224 + 751689 = 4668^2 + 867^2 .

It is not a de Polignac number, because 22541913 - 2⁹ = 22541401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22541713) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1252320 + ... + 1252337.

It is an arithmetic number, because the mean of its divisors is an integer number (5426759).

Almost surely, 2^22541913 is an apocalyptic number.

It is an amenable number.

22541913 is a deficient number, since it is larger than the sum of its proper divisors (10018641).

22541913 is a wasteful number, since it uses less digits than its factorization.

22541913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504663 (or 2504660 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 22541913 is about 4747.8324528147. The cubic root of 22541913 is about 282.4859961210.

The spelling of 22541913 in words is "twenty-two million, five hundred forty-one thousand, nine hundred thirteen".