22786129 has 2 divisors, whose sum is σ = 22786130. Its totient is φ = 22786128.

The previous prime is 22786081. The next prime is 22786139. The reversal of 22786129 is 92168722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15816529 + 6969600 = 3977^2 + 2640^2 .

It is a cyclic number.

It is not a de Polignac number, because 22786129 - 2¹⁷ = 22655057 is a prime.

It is not a weakly prime, because it can be changed into another prime (22786139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11393064 + 11393065.

It is an arithmetic number, because the mean of its divisors is an integer number (11393065).

Almost surely, 2^22786129 is an apocalyptic number.

It is an amenable number.

22786129 is a deficient number, since it is larger than the sum of its proper divisors (1).

22786129 is an equidigital number, since it uses as much as digits as its factorization.

22786129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 37.

The square root of 22786129 is about 4773.4818529036. The cubic root of 22786129 is about 283.5024723285.

The spelling of 22786129 in words is "twenty-two million, seven hundred eighty-six thousand, one hundred twenty-nine".