180098813 has 4 divisors (see below), whose sum is σ = 182635488. Its totient is φ = 177562140.

The previous prime is 180098803. The next prime is 180098819. The reversal of 180098813 is 318890081.

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.

It is a cyclic number.

It is not a de Polignac number, because 180098813 - 2⁴ = 180098797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180098819) 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, 1268231 + ... + 1268372.

It is an arithmetic number, because the mean of its divisors is an integer number (45658872).

Almost surely, 2^180098813 is an apocalyptic number.

It is an amenable number.

180098813 is a deficient number, since it is larger than the sum of its proper divisors (2536675).

180098813 is an equidigital number, since it uses as much as digits as its factorization.

180098813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2536674.

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 180098813 is about 13420.0899028285. The cubic root of 180098813 is about 564.7249168652.

The spelling of 180098813 in words is "one hundred eighty million, ninety-eight thousand, eight hundred thirteen".