129532960 has 24 divisors (see below), whose sum is σ = 306021996. Its totient is φ = 51813120.

The previous prime is 129532957. The next prime is 129532969. The reversal of 129532960 is 69235921.

It can be written as a sum of positive squares in 2 ways, for example, as 108409744 + 21123216 = 10412^2 + 4596^2 .

It is not an unprimeable number, because it can be changed into a prime (129532969) 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, 404631 + ... + 404950.

Almost surely, 2^129532960 is an apocalyptic number.

129532960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129532960 is an abundant number, since it is smaller than the sum of its proper divisors (176489036).

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

129532960 is an equidigital number, since it uses as much as digits as its factorization.

129532960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809596 (or 809588 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 129532960 is about 11381.2547638650. The cubic root of 129532960 is about 505.9723252946.

The spelling of 129532960 in words is "one hundred twenty-nine million, five hundred thirty-two thousand, nine hundred sixty".