117914939 has 2 divisors, whose sum is σ = 117914940. Its totient is φ = 117914938.

The previous prime is 117914911. The next prime is 117914959. The reversal of 117914939 is 939419711.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117914939 - 2¹² = 117910843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117914939.

It is not a weakly prime, because it can be changed into another prime (117914959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58957469 + 58957470.

It is an arithmetic number, because the mean of its divisors is an integer number (58957470).

Almost surely, 2^117914939 is an apocalyptic number.

117914939 is a deficient number, since it is larger than the sum of its proper divisors (1).

117914939 is an equidigital number, since it uses as much as digits as its factorization.

117914939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 44.

The square root of 117914939 is about 10858.8645354844. The cubic root of 117914939 is about 490.3689280455.

The spelling of 117914939 in words is "one hundred seventeen million, nine hundred fourteen thousand, nine hundred thirty-nine".