2180159 has 2 divisors, whose sum is σ = 2180160. Its totient is φ = 2180158.

The previous prime is 2180149. The next prime is 2180173. The reversal of 2180159 is 9510812.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2180159 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2180119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1090079 + 1090080.

It is an arithmetic number, because the mean of its divisors is an integer number (1090080).

2^2180159 is an apocalyptic number.

2180159 is a deficient number, since it is larger than the sum of its proper divisors (1).

2180159 is an equidigital number, since it uses as much as digits as its factorization.

2180159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 2180159 is about 1476.5361492358. The cubic root of 2180159 is about 129.6669779982. Note that the first 3 decimals are identical.

The spelling of 2180159 in words is "two million, one hundred eighty thousand, one hundred fifty-nine".