180416641 has 2 divisors, whose sum is σ = 180416642. Its totient is φ = 180416640.

The previous prime is 180416633. The next prime is 180416671. The reversal of 180416641 is 146614081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161188416 + 19228225 = 12696^2 + 4385^2 .

It is an emirp because it is prime and its reverse (146614081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 180416641 - 2³ = 180416633 is a prime.

It is not a weakly prime, because it can be changed into another prime (180416671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90208320 + 90208321.

It is an arithmetic number, because the mean of its divisors is an integer number (90208321).

Almost surely, 2^180416641 is an apocalyptic number.

It is an amenable number.

180416641 is a deficient number, since it is larger than the sum of its proper divisors (1).

180416641 is an equidigital number, since it uses as much as digits as its factorization.

180416641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 180416641 is about 13431.9261835375. The cubic root of 180416641 is about 565.0569196317.

The spelling of 180416641 in words is "one hundred eighty million, four hundred sixteen thousand, six hundred forty-one".