180394319 has 16 divisors (see below), whose sum is σ = 211200000. Its totient is φ = 150868224.

The previous prime is 180394273. The next prime is 180394321. The reversal of 180394319 is 913493081.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-180394319 is a prime.

It is a super-2 number, since 2×180394319² = 65084220654947522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180394369) 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 15 ways as a sum of consecutive naturals, for example, 143807 + ... + 145055.

It is an arithmetic number, because the mean of its divisors is an integer number (13200000).

Almost surely, 2^180394319 is an apocalyptic number.

180394319 is a deficient number, since it is larger than the sum of its proper divisors (30805681).

180394319 is a wasteful number, since it uses less digits than its factorization.

180394319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 180394319 is about 13431.0952271213. The cubic root of 180394319 is about 565.0336148325.

The spelling of 180394319 in words is "one hundred eighty million, three hundred ninety-four thousand, three hundred nineteen".