117651269 has 4 divisors (see below), whose sum is σ = 118165260. Its totient is φ = 117137280.

The previous prime is 117651257. The next prime is 117651277. The reversal of 117651269 is 962156711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 962156711 = 19963 ⋅48197.

It can be written as a sum of positive squares in 2 ways, for example, as 77176225 + 40475044 = 8785^2 + 6362^2 .

It is a cyclic number.

It is not a de Polignac number, because 117651269 - 2²⁰ = 116602693 is a prime.

It is a super-2 number, since 2×117651269² = 27683642194620722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117651239) 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, 256652 + ... + 257109.

It is an arithmetic number, because the mean of its divisors is an integer number (29541315).

Almost surely, 2^117651269 is an apocalyptic number.

It is an amenable number.

117651269 is a deficient number, since it is larger than the sum of its proper divisors (513991).

117651269 is an equidigital number, since it uses as much as digits as its factorization.

117651269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513990.

The product of its digits is 22680, while the sum is 38.

The square root of 117651269 is about 10846.7169687422. The cubic root of 117651269 is about 490.0031500561.

The spelling of 117651269 in words is "one hundred seventeen million, six hundred fifty-one thousand, two hundred sixty-nine".