185313493 has 16 divisors (see below), whose sum is σ = 193150656. Its totient is φ = 177690240.

The previous prime is 185313473. The next prime is 185313497. The reversal of 185313493 is 394313581.

185313493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 185313493 - 2¹⁷ = 185182421 is a prime.

It is a super-2 number, since 2×185313493² = 68682181375722098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185313497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 816246 + ... + 816472.

It is an arithmetic number, because the mean of its divisors is an integer number (12071916).

Almost surely, 2^185313493 is an apocalyptic number.

It is an amenable number.

185313493 is a deficient number, since it is larger than the sum of its proper divisors (7837163).

185313493 is a wasteful number, since it uses less digits than its factorization.

185313493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564.

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

The square root of 185313493 is about 13612.9898626275. The cubic root of 185313493 is about 570.1235938003.

The spelling of 185313493 in words is "one hundred eighty-five million, three hundred thirteen thousand, four hundred ninety-three".