22715129 has 4 divisors (see below), whose sum is σ = 22788480. Its totient is φ = 22641780.

The previous prime is 22715123. The next prime is 22715153. The reversal of 22715129 is 92151722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22715129 - 2⁴ = 22715113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22715123) 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, 36209 + ... + 36830.

It is an arithmetic number, because the mean of its divisors is an integer number (5697120).

Almost surely, 2^22715129 is an apocalyptic number.

It is an amenable number.

22715129 is a deficient number, since it is larger than the sum of its proper divisors (73351).

22715129 is an equidigital number, since it uses as much as digits as its factorization.

22715129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73350.

The product of its digits is 2520, while the sum is 29.

The square root of 22715129 is about 4766.0391311864. The cubic root of 22715129 is about 283.2077079373.

The spelling of 22715129 in words is "twenty-two million, seven hundred fifteen thousand, one hundred twenty-nine".