129301299 has 8 divisors (see below), whose sum is σ = 191557520. Its totient is φ = 86200848.

The previous prime is 129301297. The next prime is 129301313. The reversal of 129301299 is 992103921.

It is a happy number.

It is not a de Polignac number, because 129301299 - 2¹ = 129301297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129301297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2394442 + ... + 2394495.

It is an arithmetic number, because the mean of its divisors is an integer number (23944690).

Almost surely, 2^129301299 is an apocalyptic number.

129301299 is a deficient number, since it is larger than the sum of its proper divisors (62256221).

129301299 is an equidigital number, since it uses as much as digits as its factorization.

129301299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4788946 (or 4788940 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 129301299 is about 11371.0729045240. The cubic root of 129301299 is about 505.6705127911.

It can be divided in two parts, 129301 and 299, that added together give a square (129600 = 360²).

The spelling of 129301299 in words is "one hundred twenty-nine million, three hundred one thousand, two hundred ninety-nine".