129099339 has 14 divisors (see below), whose sum is σ = 193561556. Its totient is φ = 86065740.

The previous prime is 129099331. The next prime is 129099349. The reversal of 129099339 is 933990921.

It is not a de Polignac number, because 129099339 - 2³ = 129099331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 129099294 and 129099303.

It is not an unprimeable number, because it can be changed into a prime (129099331) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 87817 + ... + 89274.

Almost surely, 2^129099339 is an apocalyptic number.

129099339 is a deficient number, since it is larger than the sum of its proper divisors (64462217).

129099339 is an frugal number, since it uses more digits than its factorization.

129099339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177109 (or 177094 counting only the distinct ones).

The product of its (nonzero) digits is 118098, while the sum is 45.

The square root of 129099339 is about 11362.1890056450. The cubic root of 129099339 is about 505.4071010681.

The spelling of 129099339 in words is "one hundred twenty-nine million, ninety-nine thousand, three hundred thirty-nine".