115978183 has 2 divisors, whose sum is σ = 115978184. Its totient is φ = 115978182.

The previous prime is 115978171. The next prime is 115978193. The reversal of 115978183 is 381879511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115978183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115978123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57989091 + 57989092.

It is an arithmetic number, because the mean of its divisors is an integer number (57989092).

Almost surely, 2^115978183 is an apocalyptic number.

115978183 is a deficient number, since it is larger than the sum of its proper divisors (1).

115978183 is an equidigital number, since it uses as much as digits as its factorization.

115978183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 43.

The square root of 115978183 is about 10769.3167378437. The cubic root of 115978183 is about 487.6693190505.

The spelling of 115978183 in words is "one hundred fifteen million, nine hundred seventy-eight thousand, one hundred eighty-three".