129280701 has 32 divisors (see below), whose sum is σ = 195043968. Its totient is φ = 75479040.

The previous prime is 129280687. The next prime is 129280709. The reversal of 129280701 is 107082921.

It is not a de Polignac number, because 129280701 - 2¹⁰ = 129279677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129280709) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 137505 + ... + 138441.

It is an arithmetic number, because the mean of its divisors is an integer number (6095124).

Almost surely, 2^129280701 is an apocalyptic number.

129280701 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

129280701 is a deficient number, since it is larger than the sum of its proper divisors (65763267).

129280701 is a wasteful number, since it uses less digits than its factorization.

129280701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 129280701 is about 11370.1671491672. The cubic root of 129280701 is about 505.6436598658.

The spelling of 129280701 in words is "one hundred twenty-nine million, two hundred eighty thousand, seven hundred one".