129826132 has 12 divisors (see below), whose sum is σ = 228855060. Its totient is φ = 64438976.

The previous prime is 129826091. The next prime is 129826133. The reversal of 129826132 is 231628921.

129826132 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 29746116 + 100080016 = 5454^2 + 10004^2 .

129826132 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129826133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117907 + ... + 119002.

It is an arithmetic number, because the mean of its divisors is an integer number (19071255).

Almost surely, 2^129826132 is an apocalyptic number.

It is an amenable number.

129826132 is a deficient number, since it is larger than the sum of its proper divisors (99028928).

129826132 is a wasteful number, since it uses less digits than its factorization.

129826132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237050 (or 237048 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 129826132 is about 11394.1270837217. The cubic root of 129826132 is about 506.3537601272.

The spelling of 129826132 in words is "one hundred twenty-nine million, eight hundred twenty-six thousand, one hundred thirty-two".