117152129 has 4 divisors (see below), whose sum is σ = 120009540. Its totient is φ = 114294720.

The previous prime is 117152107. The next prime is 117152137. The reversal of 117152129 is 921251711.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 58553104 + 58599025 = 7652^2 + 7655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117152129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117152149) 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, 1428644 + ... + 1428725.

It is an arithmetic number, because the mean of its divisors is an integer number (30002385).

Almost surely, 2^117152129 is an apocalyptic number.

It is an amenable number.

117152129 is a deficient number, since it is larger than the sum of its proper divisors (2857411).

117152129 is an equidigital number, since it uses as much as digits as its factorization.

117152129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857410.

The product of its digits is 1260, while the sum is 29.

The square root of 117152129 is about 10823.6837075000. The cubic root of 117152129 is about 489.3092154243.

The spelling of 117152129 in words is "one hundred seventeen million, one hundred fifty-two thousand, one hundred twenty-nine".