185840113 has 2 divisors, whose sum is σ = 185840114. Its totient is φ = 185840112.

The previous prime is 185840093. The next prime is 185840117. The reversal of 185840113 is 311048581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160959969 + 24880144 = 12687^2 + 4988^2 .

It is a cyclic number.

It is not a de Polignac number, because 185840113 - 2²⁵ = 152285681 is a prime.

It is not a weakly prime, because it can be changed into another prime (185840117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92920056 + 92920057.

It is an arithmetic number, because the mean of its divisors is an integer number (92920057).

Almost surely, 2^185840113 is an apocalyptic number.

It is an amenable number.

185840113 is a deficient number, since it is larger than the sum of its proper divisors (1).

185840113 is an equidigital number, since it uses as much as digits as its factorization.

185840113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 185840113 is about 13632.3186949249. The cubic root of 185840113 is about 570.6631381268.

Adding to 185840113 its reverse (311048581), we get a palindrome (496888694).

The spelling of 185840113 in words is "one hundred eighty-five million, eight hundred forty thousand, one hundred thirteen".