22742159 has 8 divisors (see below), whose sum is σ = 24844752. Its totient is φ = 20645440.

The previous prime is 22742149. The next prime is 22742191. The reversal of 22742159 is 95124722.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22742159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22742149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12257 + ... + 13989.

It is an arithmetic number, because the mean of its divisors is an integer number (3105594).

Almost surely, 2^22742159 is an apocalyptic number.

22742159 is a deficient number, since it is larger than the sum of its proper divisors (2102593).

22742159 is a wasteful number, since it uses less digits than its factorization.

22742159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2937.

The product of its digits is 10080, while the sum is 32.

The square root of 22742159 is about 4768.8739761080. The cubic root of 22742159 is about 283.3199982959.

The spelling of 22742159 in words is "twenty-two million, seven hundred forty-two thousand, one hundred fifty-nine".