129890716 has 24 divisors (see below), whose sum is σ = 231679616. Its totient is φ = 63702720.

The previous prime is 129890687. The next prime is 129890723. The reversal of 129890716 is 617098921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147670 + ... + 148546.

Almost surely, 2^129890716 is an apocalyptic number.

It is an amenable number.

129890716 is a deficient number, since it is larger than the sum of its proper divisors (101788900).

129890716 is a wasteful number, since it uses less digits than its factorization.

129890716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549 (or 1547 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 129890716 is about 11396.9608229563. The cubic root of 129890716 is about 506.4377106885.

The spelling of 129890716 in words is "one hundred twenty-nine million, eight hundred ninety thousand, seven hundred sixteen".