117448391 has 2 divisors, whose sum is σ = 117448392. Its totient is φ = 117448390.

The previous prime is 117448381. The next prime is 117448411. The reversal of 117448391 is 193844711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117448391 - 2¹⁰ = 117447367 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117448301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58724195 + 58724196.

It is an arithmetic number, because the mean of its divisors is an integer number (58724196).

Almost surely, 2^117448391 is an apocalyptic number.

117448391 is a deficient number, since it is larger than the sum of its proper divisors (1).

117448391 is an equidigital number, since it uses as much as digits as its factorization.

117448391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 38.

The square root of 117448391 is about 10837.3608872271. The cubic root of 117448391 is about 489.7213339847.

The spelling of 117448391 in words is "one hundred seventeen million, four hundred forty-eight thousand, three hundred ninety-one".