22153081 has 4 divisors (see below), whose sum is σ = 22483792. Its totient is φ = 21822372.

The previous prime is 22153073. The next prime is 22153093. The reversal of 22153081 is 18035122.

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 not a de Polignac number, because 22153081 - 2³ = 22153073 is a prime.

It is a super-2 number, since 2×22153081² = 981517995585122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22153381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165255 + ... + 165388.

It is an arithmetic number, because the mean of its divisors is an integer number (5620948).

Almost surely, 2^22153081 is an apocalyptic number.

It is an amenable number.

22153081 is a deficient number, since it is larger than the sum of its proper divisors (330711).

22153081 is an equidigital number, since it uses as much as digits as its factorization.

22153081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330710.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 22153081 is about 4706.7059606481. The cubic root of 22153081 is about 280.8523390140.

The spelling of 22153081 in words is "twenty-two million, one hundred fifty-three thousand, eighty-one".