129152650 has 72 divisors (see below), whose sum is σ = 270411264. Its totient is φ = 45511200.

The previous prime is 129152629. The next prime is 129152651. The reversal of 129152650 is 56251921.

It is not an unprimeable number, because it can be changed into a prime (129152651) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1016887 + ... + 1017013.

It is an arithmetic number, because the mean of its divisors is an integer number (3755712).

Almost surely, 2^129152650 is an apocalyptic number.

129152650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129152650 is an abundant number, since it is smaller than the sum of its proper divisors (141258614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129152650 is a wasteful number, since it uses less digits than its factorization.

129152650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 129152650 is about 11364.5347463062. The cubic root of 129152650 is about 505.4766600352.

The spelling of 129152650 in words is "one hundred twenty-nine million, one hundred fifty-two thousand, six hundred fifty".