22412139 has 4 divisors (see below), whose sum is σ = 29882856. Its totient is φ = 14941424.

The previous prime is 22412129. The next prime is 22412147. The reversal of 22412139 is 93121422.

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 22412139 - 2⁴ = 22412123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22412129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3735354 + ... + 3735359.

It is an arithmetic number, because the mean of its divisors is an integer number (7470714).

Almost surely, 2^22412139 is an apocalyptic number.

22412139 is a deficient number, since it is larger than the sum of its proper divisors (7470717).

22412139 is an equidigital number, since it uses as much as digits as its factorization.

22412139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7470716.

The product of its digits is 864, while the sum is 24.

The square root of 22412139 is about 4734.1460687224. The cubic root of 22412139 is about 281.9428610152.

The spelling of 22412139 in words is "twenty-two million, four hundred twelve thousand, one hundred thirty-nine".