129443164 has 12 divisors (see below), whose sum is σ = 226752064. Its totient is φ = 64656864.

The previous prime is 129443141. The next prime is 129443179. The reversal of 129443164 is 461344921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11532 + ... + 19795.

Almost surely, 2^129443164 is an apocalyptic number.

It is an amenable number.

129443164 is a deficient number, since it is larger than the sum of its proper divisors (97308900).

129443164 is a wasteful number, since it uses less digits than its factorization.

129443164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32364 (or 32362 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 129443164 is about 11377.3091722076. The cubic root of 129443164 is about 505.8553800431.

The spelling of 129443164 in words is "one hundred twenty-nine million, four hundred forty-three thousand, one hundred sixty-four".