129707699 has 16 divisors (see below), whose sum is σ = 151061760. Its totient is φ = 110124000.

The previous prime is 129707693. The next prime is 129707707. The reversal of 129707699 is 996707921.

It is not a de Polignac number, because 129707699 - 2¹² = 129703603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129707693) 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, 10469 + ... + 19209.

It is an arithmetic number, because the mean of its divisors is an integer number (9441360).

Almost surely, 2^129707699 is an apocalyptic number.

129707699 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

129707699 is a deficient number, since it is larger than the sum of its proper divisors (21354061).

129707699 is a wasteful number, since it uses less digits than its factorization.

129707699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8842.

The product of its (nonzero) digits is 428652, while the sum is 50.

The square root of 129707699 is about 11388.9287907160. The cubic root of 129707699 is about 506.1997406997.

The spelling of 129707699 in words is "one hundred twenty-nine million, seven hundred seven thousand, six hundred ninety-nine".