129652099 has 2 divisors, whose sum is σ = 129652100. Its totient is φ = 129652098.

The previous prime is 129652097. The next prime is 129652123. The reversal of 129652099 is 990256921.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (990256921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129652099 - 2¹ = 129652097 is a prime.

Together with 129652097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (129652097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64826049 + 64826050.

It is an arithmetic number, because the mean of its divisors is an integer number (64826050).

Almost surely, 2^129652099 is an apocalyptic number.

129652099 is a deficient number, since it is larger than the sum of its proper divisors (1).

129652099 is an equidigital number, since it uses as much as digits as its factorization.

129652099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 129652099 is about 11386.4875620184. The cubic root of 129652099 is about 506.1274018223.

The spelling of 129652099 in words is "one hundred twenty-nine million, six hundred fifty-two thousand, ninety-nine".