22871129 has 2 divisors, whose sum is σ = 22871130. Its totient is φ = 22871128.

The previous prime is 22871113. The next prime is 22871161. The reversal of 22871129 is 92117822.

It is a happy number.

It is an a-pointer prime, because the next prime (22871161) can be obtained adding 22871129 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15031129 + 7840000 = 3877^2 + 2800^2 .

It is a cyclic number.

It is not a de Polignac number, because 22871129 - 2⁴ = 22871113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22871095 and 22871104.

It is not a weakly prime, because it can be changed into another prime (22871029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11435564 + 11435565.

It is an arithmetic number, because the mean of its divisors is an integer number (11435565).

Almost surely, 2^22871129 is an apocalyptic number.

It is an amenable number.

22871129 is a deficient number, since it is larger than the sum of its proper divisors (1).

22871129 is an equidigital number, since it uses as much as digits as its factorization.

22871129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 32.

The square root of 22871129 is about 4782.3769194826. The cubic root of 22871129 is about 283.8545550638.

The spelling of 22871129 in words is "twenty-two million, eight hundred seventy-one thousand, one hundred twenty-nine".