117815153 has 4 divisors (see below), whose sum is σ = 119812080. Its totient is φ = 115818228.

The previous prime is 117815129. The next prime is 117815161. The reversal of 117815153 is 351518711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117815153 - 2²⁶ = 50706289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117815953) 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, 998375 + ... + 998492.

It is an arithmetic number, because the mean of its divisors is an integer number (29953020).

Almost surely, 2^117815153 is an apocalyptic number.

It is an amenable number.

117815153 is a deficient number, since it is larger than the sum of its proper divisors (1996927).

117815153 is an equidigital number, since it uses as much as digits as its factorization.

117815153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1996926.

The product of its digits is 4200, while the sum is 32.

The square root of 117815153 is about 10854.2688837158. The cubic root of 117815153 is about 490.2305634365.

The spelling of 117815153 in words is "one hundred seventeen million, eight hundred fifteen thousand, one hundred fifty-three".