22153693 has 2 divisors, whose sum is σ = 22153694. Its totient is φ = 22153692.

The previous prime is 22153673. The next prime is 22153697. The reversal of 22153693 is 39635122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14607684 + 7546009 = 3822^2 + 2747^2 .

It is a cyclic number.

It is not a de Polignac number, because 22153693 - 2⁵ = 22153661 is a prime.

It is a super-2 number, since 2×22153693² = 981572227076498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22153697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11076846 + 11076847.

It is an arithmetic number, because the mean of its divisors is an integer number (11076847).

Almost surely, 2^22153693 is an apocalyptic number.

It is an amenable number.

22153693 is a deficient number, since it is larger than the sum of its proper divisors (1).

22153693 is an equidigital number, since it uses as much as digits as its factorization.

22153693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 31.

The square root of 22153693 is about 4706.7709738206. The cubic root of 22153693 is about 280.8549252614.

The spelling of 22153693 in words is "twenty-two million, one hundred fifty-three thousand, six hundred ninety-three".