22406129 has 2 divisors, whose sum is σ = 22406130. Its totient is φ = 22406128.

The previous prime is 22406107. The next prime is 22406141. The reversal of 22406129 is 92160422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12496225 + 9909904 = 3535^2 + 3148^2 .

It is a cyclic number.

It is not a de Polignac number, because 22406129 - 2²⁴ = 5628913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22406098 and 22406107.

It is not a weakly prime, because it can be changed into another prime (22406159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11203064 + 11203065.

It is an arithmetic number, because the mean of its divisors is an integer number (11203065).

Almost surely, 2^22406129 is an apocalyptic number.

It is an amenable number.

22406129 is a deficient number, since it is larger than the sum of its proper divisors (1).

22406129 is an equidigital number, since it uses as much as digits as its factorization.

22406129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 22406129 is about 4733.5112759980. The cubic root of 22406129 is about 281.9176569940.

The spelling of 22406129 in words is "twenty-two million, four hundred six thousand, one hundred twenty-nine".