22131541 has 8 divisors (see below), whose sum is σ = 22904640. Its totient is φ = 21370272.

The previous prime is 22131521. The next prime is 22131547. The reversal of 22131541 is 14513122.

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 22131541 - 2⁵ = 22131509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 936 + ... + 6718.

It is an arithmetic number, because the mean of its divisors is an integer number (2863080).

Almost surely, 2^22131541 is an apocalyptic number.

It is an amenable number.

22131541 is a deficient number, since it is larger than the sum of its proper divisors (773099).

22131541 is an equidigital number, since it uses as much as digits as its factorization.

22131541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5915.

The product of its digits is 240, while the sum is 19.

The square root of 22131541 is about 4704.4171796302. The cubic root of 22131541 is about 280.7612828887.

Adding to 22131541 its reverse (14513122), we get a palindrome (36644663).

The spelling of 22131541 in words is "twenty-two million, one hundred thirty-one thousand, five hundred forty-one".