129056132 has 24 divisors (see below), whose sum is σ = 241093440. Its totient is φ = 60268320.

The previous prime is 129056107. The next prime is 129056143. The reversal of 129056132 is 231650921.

It is a junction number, because it is equal to n+sod(n) for n = 129056095 and 129056104.

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, 6563 + ... + 17354.

It is an arithmetic number, because the mean of its divisors is an integer number (10045560).

Almost surely, 2^129056132 is an apocalyptic number.

It is an amenable number.

129056132 is a deficient number, since it is larger than the sum of its proper divisors (112037308).

129056132 is a wasteful number, since it uses less digits than its factorization.

129056132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24011 (or 24009 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 129056132 is about 11360.2874963621. The cubic root of 129056132 is about 505.3507115172.

The spelling of 129056132 in words is "one hundred twenty-nine million, fifty-six thousand, one hundred thirty-two".