129696934 has 4 divisors (see below), whose sum is σ = 194545404. Its totient is φ = 64848466.

The previous prime is 129696913. The next prime is 129696937. The reversal of 129696934 is 439696921.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129696937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32424232 + ... + 32424235.

It is an arithmetic number, because the mean of its divisors is an integer number (48636351).

Almost surely, 2^129696934 is an apocalyptic number.

129696934 is a deficient number, since it is larger than the sum of its proper divisors (64848470).

129696934 is an equidigital number, since it uses as much as digits as its factorization.

129696934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64848469.

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

The square root of 129696934 is about 11388.4561728094. The cubic root of 129696934 is about 506.1857364142.

The spelling of 129696934 in words is "one hundred twenty-nine million, six hundred ninety-six thousand, nine hundred thirty-four".