180682493 has 2 divisors, whose sum is σ = 180682494. Its totient is φ = 180682492.

The previous prime is 180682483. The next prime is 180682501. The reversal of 180682493 is 394286081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160224964 + 20457529 = 12658^2 + 4523^2 .

It is a cyclic number.

It is not a de Polignac number, because 180682493 - 2⁸ = 180682237 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 180682493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180682483) 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 as a sum of consecutive naturals, namely, 90341246 + 90341247.

It is an arithmetic number, because the mean of its divisors is an integer number (90341247).

Almost surely, 2^180682493 is an apocalyptic number.

It is an amenable number.

180682493 is a deficient number, since it is larger than the sum of its proper divisors (1).

180682493 is an equidigital number, since it uses as much as digits as its factorization.

180682493 is an odious number, because the sum of its binary digits is odd.

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

The square root of 180682493 is about 13441.8188129434. The cubic root of 180682493 is about 565.3343289765.

The spelling of 180682493 in words is "one hundred eighty million, six hundred eighty-two thousand, four hundred ninety-three".