181404020299 has 4 divisors (see below), whose sum is σ = 182417450760. Its totient is φ = 180390589840.

The previous prime is 181404020293. The next prime is 181404020327. The reversal of 181404020299 is 992020404181.

181404020299 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.

It is a cyclic number.

It is not a de Polignac number, because 181404020299 - 2⁹ = 181404019787 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (181404020293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506714962 + ... + 506715319.

It is an arithmetic number, because the mean of its divisors is an integer number (45604362690).

Almost surely, 2^181404020299 is an apocalyptic number.

181404020299 is a deficient number, since it is larger than the sum of its proper divisors (1013430461).

181404020299 is a wasteful number, since it uses less digits than its factorization.

181404020299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013430460.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 181404020299 in words is "one hundred eighty-one billion, four hundred four million, twenty thousand, two hundred ninety-nine".