22375481 has 4 divisors (see below), whose sum is σ = 23348352. Its totient is φ = 21402612.

The previous prime is 22375453. The next prime is 22375489. The reversal of 22375481 is 18457322.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22375481 is a prime.

It is a super-2 number, since 2×22375481² = 1001324299962722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22375489) 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 3 ways as a sum of consecutive naturals, for example, 486401 + ... + 486446.

It is an arithmetic number, because the mean of its divisors is an integer number (5837088).

Almost surely, 2^22375481 is an apocalyptic number.

It is an amenable number.

22375481 is a deficient number, since it is larger than the sum of its proper divisors (972871).

22375481 is an equidigital number, since it uses as much as digits as its factorization.

22375481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972870.

The product of its digits is 13440, while the sum is 32.

The square root of 22375481 is about 4730.2728251127. The cubic root of 22375481 is about 281.7890589242.

The spelling of 22375481 in words is "twenty-two million, three hundred seventy-five thousand, four hundred eighty-one".