129963694 has 16 divisors (see below), whose sum is σ = 222962400. Its totient is φ = 55656864.

The previous prime is 129963689. The next prime is 129963697. The reversal of 129963694 is 496369921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129963697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22452 + ... + 27640.

It is an arithmetic number, because the mean of its divisors is an integer number (13935150).

Almost surely, 2^129963694 is an apocalyptic number.

129963694 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

129963694 is a deficient number, since it is larger than the sum of its proper divisors (92998706).

129963694 is a wasteful number, since it uses less digits than its factorization.

129963694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6987.

The product of its digits is 629856, while the sum is 49.

The square root of 129963694 is about 11400.1620163926. The cubic root of 129963694 is about 506.5325388458.

The spelling of 129963694 in words is "one hundred twenty-nine million, nine hundred sixty-three thousand, six hundred ninety-four".