181394483 has 4 divisors (see below), whose sum is σ = 182408040. Its totient is φ = 180380928.

The previous prime is 181394467. The next prime is 181394489. The reversal of 181394483 is 384493181.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 181394483 - 2⁴ = 181394467 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 181394483.

It is not an unprimeable number, because it can be changed into a prime (181394489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506510 + ... + 506867.

It is an arithmetic number, because the mean of its divisors is an integer number (45602010).

Almost surely, 2^181394483 is an apocalyptic number.

181394483 is a deficient number, since it is larger than the sum of its proper divisors (1013557).

181394483 is a wasteful number, since it uses less digits than its factorization.

181394483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013556.

The product of its digits is 82944, while the sum is 41.

The square root of 181394483 is about 13468.2769128051. The cubic root of 181394483 is about 566.0759334502.

It can be divided in two parts, 18139 and 4483, that added together give a palindrome (22622).

The spelling of 181394483 in words is "one hundred eighty-one million, three hundred ninety-four thousand, four hundred eighty-three".