129622799 has 2 divisors, whose sum is σ = 129622800. Its totient is φ = 129622798.

The previous prime is 129622781. The next prime is 129622847. The reversal of 129622799 is 997226921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129622799 - 2⁸ = 129622543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129622709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64811399 + 64811400.

It is an arithmetic number, because the mean of its divisors is an integer number (64811400).

Almost surely, 2^129622799 is an apocalyptic number.

129622799 is a deficient number, since it is larger than the sum of its proper divisors (1).

129622799 is an equidigital number, since it uses as much as digits as its factorization.

129622799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 47.

The square root of 129622799 is about 11385.2008765766. The cubic root of 129622799 is about 506.0892724740.

The spelling of 129622799 in words is "one hundred twenty-nine million, six hundred twenty-two thousand, seven hundred ninety-nine".