22153155 has 8 divisors (see below), whose sum is σ = 35445072. Its totient is φ = 11815008.

The previous prime is 22153147. The next prime is 22153177. The reversal of 22153155 is 55135122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22153155 - 2³ = 22153147 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 738424 + ... + 738453.

It is an arithmetic number, because the mean of its divisors is an integer number (4430634).

Almost surely, 2^22153155 is an apocalyptic number.

22153155 is a deficient number, since it is larger than the sum of its proper divisors (13291917).

22153155 is a wasteful number, since it uses less digits than its factorization.

22153155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476885.

The product of its digits is 1500, while the sum is 24.

The square root of 22153155 is about 4706.7138217657. The cubic root of 22153155 is about 280.8526517327.

Adding to 22153155 its reverse (55135122), we get a palindrome (77288277).

The spelling of 22153155 in words is "twenty-two million, one hundred fifty-three thousand, one hundred fifty-five".