22580161 has 4 divisors (see below), whose sum is σ = 22601392. Its totient is φ = 22558932.

The previous prime is 22580149. The next prime is 22580167. The reversal of 22580161 is 16108522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16108522 = 2 ⋅8054261.

It is a cyclic number.

It is not a de Polignac number, because 22580161 - 2²¹ = 20483009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22580167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8931 + ... + 11176.

It is an arithmetic number, because the mean of its divisors is an integer number (5650348).

Almost surely, 2^22580161 is an apocalyptic number.

It is an amenable number.

22580161 is a deficient number, since it is larger than the sum of its proper divisors (21231).

22580161 is a wasteful number, since it uses less digits than its factorization.

22580161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21230.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 22580161 is about 4751.8586889763. The cubic root of 22580161 is about 282.6456752526.

Adding to 22580161 its reverse (16108522), we get a palindrome (38688683).

The spelling of 22580161 in words is "twenty-two million, five hundred eighty thousand, one hundred sixty-one".