158880217 has 2 divisors, whose sum is σ = 158880218. Its totient is φ = 158880216.

The previous prime is 158880203. The next prime is 158880247. The reversal of 158880217 is 712088851.

158880217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124902976 + 33977241 = 11176^2 + 5829^2 .

It is a cyclic number.

It is not a de Polignac number, because 158880217 - 2⁷ = 158880089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 158880217.

It is not a weakly prime, because it can be changed into another prime (158880247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79440108 + 79440109.

It is an arithmetic number, because the mean of its divisors is an integer number (79440109).

Almost surely, 2^158880217 is an apocalyptic number.

It is an amenable number.

158880217 is a deficient number, since it is larger than the sum of its proper divisors (1).

158880217 is an equidigital number, since it uses as much as digits as its factorization.

158880217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35840, while the sum is 40.

The square root of 158880217 is about 12604.7696131266. The cubic root of 158880217 is about 541.6140744310.

The spelling of 158880217 in words is "one hundred fifty-eight million, eight hundred eighty thousand, two hundred seventeen".