129524099 has 2 divisors, whose sum is σ = 129524100. Its totient is φ = 129524098.

The previous prime is 129524069. The next prime is 129524123. The reversal of 129524099 is 990425921.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (990425921) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129524099 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (129524039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64762049 + 64762050.

It is an arithmetic number, because the mean of its divisors is an integer number (64762050).

Almost surely, 2^129524099 is an apocalyptic number.

129524099 is a deficient number, since it is larger than the sum of its proper divisors (1).

129524099 is an equidigital number, since it uses as much as digits as its factorization.

129524099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 129524099 is about 11380.8654767553. The cubic root of 129524099 is about 505.9607876314.

The spelling of 129524099 in words is "one hundred twenty-nine million, five hundred twenty-four thousand, ninety-nine".