22151135 has 4 divisors (see below), whose sum is σ = 26581368. Its totient is φ = 17720904.

The previous prime is 22151117. The next prime is 22151159. The reversal of 22151135 is 53115122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22151135 - 2²² = 17956831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2215109 + ... + 2215118.

It is an arithmetic number, because the mean of its divisors is an integer number (6645342).

Almost surely, 2^22151135 is an apocalyptic number.

22151135 is a deficient number, since it is larger than the sum of its proper divisors (4430233).

22151135 is an equidigital number, since it uses as much as digits as its factorization.

22151135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4430232.

The product of its digits is 300, while the sum is 20.

The square root of 22151135 is about 4706.4992297885. The cubic root of 22151135 is about 280.8441151066.

Adding to 22151135 its reverse (53115122), we get a palindrome (75266257).

The spelling of 22151135 in words is "twenty-two million, one hundred fifty-one thousand, one hundred thirty-five".