117890183 has 2 divisors, whose sum is σ = 117890184. Its totient is φ = 117890182.

The previous prime is 117890173. The next prime is 117890197. The reversal of 117890183 is 381098711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117890183 - 2⁴ = 117890167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117890173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58945091 + 58945092.

It is an arithmetic number, because the mean of its divisors is an integer number (58945092).

Almost surely, 2^117890183 is an apocalyptic number.

117890183 is a deficient number, since it is larger than the sum of its proper divisors (1).

117890183 is an equidigital number, since it uses as much as digits as its factorization.

117890183 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 38.

The square root of 117890183 is about 10857.7245774610. The cubic root of 117890183 is about 490.3346083261.

The spelling of 117890183 in words is "one hundred seventeen million, eight hundred ninety thousand, one hundred eighty-three".