117445277 has 2 divisors, whose sum is σ = 117445278. Its totient is φ = 117445276.

The previous prime is 117445261. The next prime is 117445303. The reversal of 117445277 is 772544711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116942596 + 502681 = 10814^2 + 709^2 .

It is a cyclic number.

It is not a de Polignac number, because 117445277 - 2⁴ = 117445261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117445277.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117445177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58722638 + 58722639.

It is an arithmetic number, because the mean of its divisors is an integer number (58722639).

Almost surely, 2^117445277 is an apocalyptic number.

It is an amenable number.

117445277 is a deficient number, since it is larger than the sum of its proper divisors (1).

117445277 is an equidigital number, since it uses as much as digits as its factorization.

117445277 is an evil number, because the sum of its binary digits is even.

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

The square root of 117445277 is about 10837.2172166105. The cubic root of 117445277 is about 489.7170058263.

Adding to 117445277 its reverse (772544711), we get a palindrome (889989988).

The spelling of 117445277 in words is "one hundred seventeen million, four hundred forty-five thousand, two hundred seventy-seven".