129916435 has 16 divisors (see below), whose sum is σ = 174671712. Its totient is φ = 91929600.

The previous prime is 129916429. The next prime is 129916447. The reversal of 129916435 is 534619921.

It is not a de Polignac number, because 129916435 - 2⁵ = 129916403 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29886 + ... + 33955.

It is an arithmetic number, because the mean of its divisors is an integer number (10916982).

Almost surely, 2^129916435 is an apocalyptic number.

129916435 is a deficient number, since it is larger than the sum of its proper divisors (44755277).

129916435 is a wasteful number, since it uses less digits than its factorization.

129916435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63894.

The product of its digits is 58320, while the sum is 40.

The square root of 129916435 is about 11398.0890942298. The cubic root of 129916435 is about 506.4711342010.

The spelling of 129916435 in words is "one hundred twenty-nine million, nine hundred sixteen thousand, four hundred thirty-five".