129379701 has 16 divisors (see below), whose sum is σ = 194679360. Its totient is φ = 75707520.

The previous prime is 129379699. The next prime is 129379739. The reversal of 129379701 is 107973921.

It is not a de Polignac number, because 129379701 - 2¹ = 129379699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129379701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129379781) 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 15 ways as a sum of consecutive naturals, for example, 66640 + ... + 68553.

It is an arithmetic number, because the mean of its divisors is an integer number (12167460).

Almost surely, 2^129379701 is an apocalyptic number.

129379701 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

129379701 is a deficient number, since it is larger than the sum of its proper divisors (65299659).

129379701 is a wasteful number, since it uses less digits than its factorization.

129379701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135236.

The product of its (nonzero) digits is 23814, while the sum is 39.

The square root of 129379701 is about 11374.5198140405. The cubic root of 129379701 is about 505.7726967843.

The spelling of 129379701 in words is "one hundred twenty-nine million, three hundred seventy-nine thousand, seven hundred one".