129532467 has 4 divisors (see below), whose sum is σ = 172709960. Its totient is φ = 86354976.

The previous prime is 129532457. The next prime is 129532493. The reversal of 129532467 is 764235921.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 129532467 - 2⁷ = 129532339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129532427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21588742 + ... + 21588747.

It is an arithmetic number, because the mean of its divisors is an integer number (43177490).

Almost surely, 2^129532467 is an apocalyptic number.

129532467 is a deficient number, since it is larger than the sum of its proper divisors (43177493).

129532467 is an equidigital number, since it uses as much as digits as its factorization.

129532467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43177492.

The product of its digits is 90720, while the sum is 39.

The square root of 129532467 is about 11381.2331054240. The cubic root of 129532467 is about 505.9716833868.

The spelling of 129532467 in words is "one hundred twenty-nine million, five hundred thirty-two thousand, four hundred sixty-seven".