185314393 has 4 divisors (see below), whose sum is σ = 202161168. Its totient is φ = 168467620.

The previous prime is 185314307. The next prime is 185314397. The reversal of 185314393 is 393413581.

185314393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 393413581 = 11 ⋅35764871.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-185314393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (185314397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8423371 + ... + 8423392.

It is an arithmetic number, because the mean of its divisors is an integer number (50540292).

Almost surely, 2^185314393 is an apocalyptic number.

It is an amenable number.

185314393 is a deficient number, since it is larger than the sum of its proper divisors (16846775).

185314393 is a wasteful number, since it uses less digits than its factorization.

185314393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16846774.

The product of its digits is 38880, while the sum is 37.

The square root of 185314393 is about 13613.0229192491. The cubic root of 185314393 is about 570.1245167595.

The spelling of 185314393 in words is "one hundred eighty-five million, three hundred fourteen thousand, three hundred ninety-three".