180798913 has 8 divisors (see below), whose sum is σ = 187439616. Its totient is φ = 174208800.

The previous prime is 180798803. The next prime is 180798931. The reversal of 180798913 is 319897081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 180798913 - 2¹³ = 180790721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180798973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5293 + ... + 19738.

It is an arithmetic number, because the mean of its divisors is an integer number (23429952).

Almost surely, 2^180798913 is an apocalyptic number.

It is an amenable number.

180798913 is a deficient number, since it is larger than the sum of its proper divisors (6640703).

180798913 is a wasteful number, since it uses less digits than its factorization.

180798913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25295.

The product of its (nonzero) digits is 108864, while the sum is 46.

The square root of 180798913 is about 13446.1486307418. The cubic root of 180798913 is about 565.4557244156.

The spelling of 180798913 in words is "one hundred eighty million, seven hundred ninety-eight thousand, nine hundred thirteen".