185363138 has 16 divisors (see below), whose sum is σ = 298797984. Its totient is φ = 85926720.

The previous prime is 185363131. The next prime is 185363147. The reversal of 185363138 is 831363581.

185363138 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (185363131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38408 + ... + 42963.

It is an arithmetic number, because the mean of its divisors is an integer number (18674874).

Almost surely, 2^185363138 is an apocalyptic number.

185363138 is a deficient number, since it is larger than the sum of its proper divisors (113434846).

185363138 is a wasteful number, since it uses less digits than its factorization.

185363138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81457.

The product of its digits is 51840, while the sum is 38.

The square root of 185363138 is about 13614.8131827065. The cubic root of 185363138 is about 570.1745007944.

The spelling of 185363138 in words is "one hundred eighty-five million, three hundred sixty-three thousand, one hundred thirty-eight".