117922913 has 2 divisors, whose sum is σ = 117922914. Its totient is φ = 117922912.

The previous prime is 117922907. The next prime is 117922919. The reversal of 117922913 is 319229711.

It is a balanced prime because it is at equal distance from previous prime (117922907) and next prime (117922919).

It can be written as a sum of positive squares in only one way, i.e., 117245584 + 677329 = 10828^2 + 823^2 .

It is an emirp because it is prime and its reverse (319229711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117922913 - 2¹⁰ = 117921889 is a prime.

It is not a weakly prime, because it can be changed into another prime (117922919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58961456 + 58961457.

It is an arithmetic number, because the mean of its divisors is an integer number (58961457).

Almost surely, 2^117922913 is an apocalyptic number.

It is an amenable number.

117922913 is a deficient number, since it is larger than the sum of its proper divisors (1).

117922913 is an equidigital number, since it uses as much as digits as its factorization.

117922913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 35.

The square root of 117922913 is about 10859.2316947379. The cubic root of 117922913 is about 490.3799815324.

The spelling of 117922913 in words is "one hundred seventeen million, nine hundred twenty-two thousand, nine hundred thirteen".