185089493 has 2 divisors, whose sum is σ = 185089494. Its totient is φ = 185089492.

The previous prime is 185089459. The next prime is 185089517. The reversal of 185089493 is 394980581.

185089493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 183819364 + 1270129 = 13558^2 + 1127^2 .

It is an emirp because it is prime and its reverse (394980581) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 185089493 - 2²² = 180895189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (185089193) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92544746 + 92544747.

It is an arithmetic number, because the mean of its divisors is an integer number (92544747).

Almost surely, 2^185089493 is an apocalyptic number.

It is an amenable number.

185089493 is a deficient number, since it is larger than the sum of its proper divisors (1).

185089493 is an equidigital number, since it uses as much as digits as its factorization.

185089493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 185089493 is about 13604.7599390801. The cubic root of 185089493 is about 569.8937865088.

The spelling of 185089493 in words is "one hundred eighty-five million, eighty-nine thousand, four hundred ninety-three".