22351129 has 2 divisors, whose sum is σ = 22351130. Its totient is φ = 22351128.

The previous prime is 22351117. The next prime is 22351151. The reversal of 22351129 is 92115322.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18045504 + 4305625 = 4248^2 + 2075^2 .

It is a cyclic number.

It is not a de Polignac number, because 22351129 - 2¹¹ = 22349081 is a prime.

It is not a weakly prime, because it can be changed into another prime (22351169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11175564 + 11175565.

It is an arithmetic number, because the mean of its divisors is an integer number (11175565).

Almost surely, 2^22351129 is an apocalyptic number.

It is an amenable number.

22351129 is a deficient number, since it is larger than the sum of its proper divisors (1).

22351129 is an equidigital number, since it uses as much as digits as its factorization.

22351129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 25.

The square root of 22351129 is about 4727.6980656552. The cubic root of 22351129 is about 281.6867949311.

It can be divided in two parts, 2235 and 1129, that added together give a square (3364 = 58²).

The spelling of 22351129 in words is "twenty-two million, three hundred fifty-one thousand, one hundred twenty-nine".