129980694 has 16 divisors (see below), whose sum is σ = 263623680. Its totient is φ = 42716520.

The previous prime is 129980687. The next prime is 129980713. The reversal of 129980694 is 496089921.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 152134 + ... + 152985.

It is an arithmetic number, because the mean of its divisors is an integer number (16476480).

Almost surely, 2^129980694 is an apocalyptic number.

129980694 is an abundant number, since it is smaller than the sum of its proper divisors (133642986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129980694 is a wasteful number, since it uses less digits than its factorization.

129980694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305195.

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 129980694 is about 11400.9075954505. The cubic root of 129980694 is about 506.5546236744.

The spelling of 129980694 in words is "one hundred twenty-nine million, nine hundred eighty thousand, six hundred ninety-four".