129752295 has 8 divisors (see below), whose sum is σ = 207603696. Its totient is φ = 69201216.

The previous prime is 129752291. The next prime is 129752297. The reversal of 129752295 is 592257921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 129752295 - 2² = 129752291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129752291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4325062 + ... + 4325091.

It is an arithmetic number, because the mean of its divisors is an integer number (25950462).

Almost surely, 2^129752295 is an apocalyptic number.

129752295 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

129752295 is a deficient number, since it is larger than the sum of its proper divisors (77851401).

129752295 is an equidigital number, since it uses as much as digits as its factorization.

129752295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8650161.

The product of its digits is 113400, while the sum is 42.

The square root of 129752295 is about 11390.8864887681. The cubic root of 129752295 is about 506.2577477857.

The spelling of 129752295 in words is "one hundred twenty-nine million, seven hundred fifty-two thousand, two hundred ninety-five".