22153913 has 4 divisors (see below), whose sum is σ = 22163328. Its totient is φ = 22144500.

The previous prime is 22153909. The next prime is 22153921. The reversal of 22153913 is 31935122.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22153913 - 2² = 22153909 is a prime.

It is a super-2 number, since 2×22153913² = 981591722423138, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22153903) 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, 2288 + ... + 7038.

It is an arithmetic number, because the mean of its divisors is an integer number (5540832).

Almost surely, 2^22153913 is an apocalyptic number.

It is an amenable number.

22153913 is a deficient number, since it is larger than the sum of its proper divisors (9415).

22153913 is an equidigital number, since it uses as much as digits as its factorization.

22153913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9414.

The product of its digits is 1620, while the sum is 26.

The square root of 22153913 is about 4706.7943443495. The cubic root of 22153913 is about 280.8558549466.

The spelling of 22153913 in words is "twenty-two million, one hundred fifty-three thousand, nine hundred thirteen".