117242177 has 4 divisors (see below), whose sum is σ = 126260820. Its totient is φ = 108223536.

The previous prime is 117242171. The next prime is 117242219. The reversal of 117242177 is 771242711.

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 74718736 + 42523441 = 8644^2 + 6521^2 .

It is a cyclic number.

It is not a de Polignac number, because 117242177 - 2¹⁴ = 117225793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117242171) 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, 4509302 + ... + 4509327.

It is an arithmetic number, because the mean of its divisors is an integer number (31565205).

Almost surely, 2^117242177 is an apocalyptic number.

It is an amenable number.

117242177 is a deficient number, since it is larger than the sum of its proper divisors (9018643).

117242177 is an equidigital number, since it uses as much as digits as its factorization.

117242177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9018642.

The product of its digits is 5488, while the sum is 32.

The square root of 117242177 is about 10827.8426752516. The cubic root of 117242177 is about 489.4345511233.

Adding to 117242177 its reverse (771242711), we get a palindrome (888484888).

The spelling of 117242177 in words is "one hundred seventeen million, two hundred forty-two thousand, one hundred seventy-seven".