22153315 has 4 divisors (see below), whose sum is σ = 26583984. Its totient is φ = 17722648.

The previous prime is 22153291. The next prime is 22153319. The reversal of 22153315 is 51335122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51335122 = 2 ⋅25667561.

It is a cyclic number.

It is not a de Polignac number, because 22153315 - 2⁵ = 22153283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22153319) 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, 2215327 + ... + 2215336.

It is an arithmetic number, because the mean of its divisors is an integer number (6645996).

Almost surely, 2^22153315 is an apocalyptic number.

22153315 is a deficient number, since it is larger than the sum of its proper divisors (4430669).

22153315 is an equidigital number, since it uses as much as digits as its factorization.

22153315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4430668.

The product of its digits is 900, while the sum is 22.

The square root of 22153315 is about 4706.7308187318. The cubic root of 22153315 is about 280.8533278789.

Adding to 22153315 its reverse (51335122), we get a palindrome (73488437).

The spelling of 22153315 in words is "twenty-two million, one hundred fifty-three thousand, three hundred fifteen".