117455197 has 2 divisors, whose sum is σ = 117455198. Its totient is φ = 117455196.

The previous prime is 117455189. The next prime is 117455213. The reversal of 117455197 is 791554711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116402521 + 1052676 = 10789^2 + 1026^2 .

It is an emirp because it is prime and its reverse (791554711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117455197 - 2³ = 117455189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117455137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58727598 + 58727599.

It is an arithmetic number, because the mean of its divisors is an integer number (58727599).

Almost surely, 2^117455197 is an apocalyptic number.

It is an amenable number.

117455197 is a deficient number, since it is larger than the sum of its proper divisors (1).

117455197 is an equidigital number, since it uses as much as digits as its factorization.

117455197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44100, while the sum is 40.

The square root of 117455197 is about 10837.6748890156. The cubic root of 117455197 is about 489.7307933991.

The spelling of 117455197 in words is "one hundred seventeen million, four hundred fifty-five thousand, one hundred ninety-seven".