129339369 has 16 divisors (see below), whose sum is σ = 191828800. Its totient is φ = 86129568.

The previous prime is 129339367. The next prime is 129339377. The reversal of 129339369 is 963933921.

It is not a de Polignac number, because 129339369 - 2¹ = 129339367 is a prime.

It is a super-2 number, since 2×129339369² = 33457344746636322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129339367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28362 + ... + 32604.

It is an arithmetic number, because the mean of its divisors is an integer number (11989300).

Almost surely, 2^129339369 is an apocalyptic number.

It is an amenable number.

129339369 is a deficient number, since it is larger than the sum of its proper divisors (62489431).

129339369 is a wasteful number, since it uses less digits than its factorization.

129339369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5381 (or 5375 counting only the distinct ones).

The product of its digits is 236196, while the sum is 45.

The square root of 129339369 is about 11372.7467658433. The cubic root of 129339369 is about 505.7201358744.

The spelling of 129339369 in words is "one hundred twenty-nine million, three hundred thirty-nine thousand, three hundred sixty-nine".