22366139 has 4 divisors (see below), whose sum is σ = 22381224. Its totient is φ = 22351056.

The previous prime is 22366121. The next prime is 22366151. The reversal of 22366139 is 93166322.

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 22366139 - 2²⁴ = 5588923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22366109) 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, 5042 + ... + 8375.

It is an arithmetic number, because the mean of its divisors is an integer number (5595306).

Almost surely, 2^22366139 is an apocalyptic number.

22366139 is a deficient number, since it is larger than the sum of its proper divisors (15085).

22366139 is a wasteful number, since it uses less digits than its factorization.

22366139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15084.

The product of its digits is 11664, while the sum is 32.

The square root of 22366139 is about 4729.2852525514. The cubic root of 22366139 is about 281.7498368275.

The spelling of 22366139 in words is "twenty-two million, three hundred sixty-six thousand, one hundred thirty-nine".