117774245 has 16 divisors (see below), whose sum is σ = 145248768. Its totient is φ = 91632000.

The previous prime is 117774233. The next prime is 117774247. The reversal of 117774245 is 542477711.

It is not a de Polignac number, because 117774245 - 2²⁰ = 116725669 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117774199 and 117774208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117774247) 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 15 ways as a sum of consecutive naturals, for example, 37745 + ... + 40745.

It is an arithmetic number, because the mean of its divisors is an integer number (9078048).

Almost surely, 2^117774245 is an apocalyptic number.

It is an amenable number.

117774245 is a deficient number, since it is larger than the sum of its proper divisors (27474523).

117774245 is a wasteful number, since it uses less digits than its factorization.

117774245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3220.

The product of its digits is 54880, while the sum is 38.

The square root of 117774245 is about 10852.3843002356. The cubic root of 117774245 is about 490.1738172740.

The spelling of 117774245 in words is "one hundred seventeen million, seven hundred seventy-four thousand, two hundred forty-five".