129045679 has 16 divisors (see below), whose sum is σ = 153576000. Its totient is φ = 106089984.

The previous prime is 129045673. The next prime is 129045689. The reversal of 129045679 is 976540921.

It is a happy number.

It is not a de Polignac number, because 129045679 - 2⁵ = 129045647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129045673) 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, 29847 + ... + 33895.

It is an arithmetic number, because the mean of its divisors is an integer number (9598500).

Almost surely, 2^129045679 is an apocalyptic number.

129045679 is a deficient number, since it is larger than the sum of its proper divisors (24530321).

129045679 is a wasteful number, since it uses less digits than its factorization.

129045679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4242.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 129045679 is about 11359.8274194637. The cubic root of 129045679 is about 505.3370673932.

The spelling of 129045679 in words is "one hundred twenty-nine million, forty-five thousand, six hundred seventy-nine".