117772205 has 4 divisors (see below), whose sum is σ = 141326652. Its totient is φ = 94217760.

The previous prime is 117772183. The next prime is 117772217. The reversal of 117772205 is 502277711.

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 14485636 + 103286569 = 3806^2 + 10163^2 .

It is not a de Polignac number, because 117772205 - 2¹² = 117768109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11777216 + ... + 11777225.

It is an arithmetic number, because the mean of its divisors is an integer number (35331663).

Almost surely, 2^117772205 is an apocalyptic number.

It is an amenable number.

117772205 is a deficient number, since it is larger than the sum of its proper divisors (23554447).

117772205 is an equidigital number, since it uses as much as digits as its factorization.

117772205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23554446.

The product of its (nonzero) digits is 6860, while the sum is 32.

The square root of 117772205 is about 10852.2903112661. The cubic root of 117772205 is about 490.1709871126.

The spelling of 117772205 in words is "one hundred seventeen million, seven hundred seventy-two thousand, two hundred five".