22134779 has 4 divisors (see below), whose sum is σ = 22330776. Its totient is φ = 21938784.

The previous prime is 22134733. The next prime is 22134781. The reversal of 22134779 is 97743122.

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 22134779 - 2²⁰ = 21086203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22134709) 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, 97829 + ... + 98054.

It is an arithmetic number, because the mean of its divisors is an integer number (5582694).

Almost surely, 2^22134779 is an apocalyptic number.

22134779 is a deficient number, since it is larger than the sum of its proper divisors (195997).

22134779 is a wasteful number, since it uses less digits than its factorization.

22134779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195996.

The product of its digits is 21168, while the sum is 35.

The square root of 22134779 is about 4704.7613116927. The cubic root of 22134779 is about 280.7749746707.

The spelling of 22134779 in words is "twenty-two million, one hundred thirty-four thousand, seven hundred seventy-nine".