129971194 has 16 divisors (see below), whose sum is σ = 198602208. Its totient is φ = 63780912.

The previous prime is 129971167. The next prime is 129971207. The reversal of 129971194 is 491179921.

129971194 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×129971194² = 33785022539571272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 129971194.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23569 + ... + 28555.

It is an arithmetic number, because the mean of its divisors is an integer number (12412638).

Almost surely, 2^129971194 is an apocalyptic number.

129971194 is a deficient number, since it is larger than the sum of its proper divisors (68631014).

129971194 is a wasteful number, since it uses less digits than its factorization.

129971194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5229.

The product of its digits is 40824, while the sum is 43.

The square root of 129971194 is about 11400.4909543405. The cubic root of 129971194 is about 506.5422823900.

The spelling of 129971194 in words is "one hundred twenty-nine million, nine hundred seventy-one thousand, one hundred ninety-four".