180474817 has 2 divisors, whose sum is σ = 180474818. Its totient is φ = 180474816.

The previous prime is 180474809. The next prime is 180474857. The reversal of 180474817 is 718474081.

It is an a-pointer prime, because the next prime (180474857) can be obtained adding 180474817 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147112641 + 33362176 = 12129^2 + 5776^2 .

It is a cyclic number.

It is not a de Polignac number, because 180474817 - 2³ = 180474809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 180474817.

It is not a weakly prime, because it can be changed into another prime (180474857) 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 as a sum of consecutive naturals, namely, 90237408 + 90237409.

It is an arithmetic number, because the mean of its divisors is an integer number (90237409).

Almost surely, 2^180474817 is an apocalyptic number.

It is an amenable number.

180474817 is a deficient number, since it is larger than the sum of its proper divisors (1).

180474817 is an equidigital number, since it uses as much as digits as its factorization.

180474817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50176, while the sum is 40.

The square root of 180474817 is about 13434.0915956383. The cubic root of 180474817 is about 565.1176479889.

The spelling of 180474817 in words is "one hundred eighty million, four hundred seventy-four thousand, eight hundred seventeen".