22541281 has 8 divisors (see below), whose sum is σ = 26017344. Its totient is φ = 19129200.

The previous prime is 22541273. The next prime is 22541287. The reversal of 22541281 is 18214522.

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 22541281 - 2³ = 22541273 is a prime.

It is a super-2 number, since 2×22541281² = 1016218698241922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22541287) 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, 15235 + ... + 16648.

It is an arithmetic number, because the mean of its divisors is an integer number (3252168).

Almost surely, 2^22541281 is an apocalyptic number.

It is an amenable number.

22541281 is a deficient number, since it is larger than the sum of its proper divisors (3476063).

22541281 is a wasteful number, since it uses less digits than its factorization.

22541281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31991.

The product of its digits is 1280, while the sum is 25.

The square root of 22541281 is about 4747.7658956608. The cubic root of 22541281 is about 282.4833561082.

It can be divided in two parts, 22541 and 281, that added together give a palindrome (22822).

The spelling of 22541281 in words is "twenty-two million, five hundred forty-one thousand, two hundred eighty-one".