129894524 has 12 divisors (see below), whose sum is σ = 237198864. Its totient is φ = 62123424.

The previous prime is 129894497. The next prime is 129894539. The reversal of 129894524 is 425498921.

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, 705857 + ... + 706040.

It is an arithmetic number, because the mean of its divisors is an integer number (19766572).

Almost surely, 2^129894524 is an apocalyptic number.

It is an amenable number.

129894524 is a deficient number, since it is larger than the sum of its proper divisors (107304340).

129894524 is a wasteful number, since it uses less digits than its factorization.

129894524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411924 (or 1411922 counting only the distinct ones).

The product of its digits is 207360, while the sum is 44.

The square root of 129894524 is about 11397.1278838135. The cubic root of 129894524 is about 506.4426597103.

The spelling of 129894524 in words is "one hundred twenty-nine million, eight hundred ninety-four thousand, five hundred twenty-four".