2159959 has 2 divisors, whose sum is σ = 2159960. Its totient is φ = 2159958.

The previous prime is 2159957. The next prime is 2160001. The reversal of 2159959 is 9599512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2159959 - 2¹ = 2159957 is a prime.

Together with 2159957, it forms a pair of twin primes.

It is a plaindrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2159951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1079979 + 1079980.

It is an arithmetic number, because the mean of its divisors is an integer number (1079980).

2^2159959 is an apocalyptic number.

2159959 is a deficient number, since it is larger than the sum of its proper divisors (1).

2159959 is an equidigital number, since it uses as much as digits as its factorization.

2159959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36450, while the sum is 40.

The square root of 2159959 is about 1469.6798971205. The cubic root of 2159959 is about 129.2652635095.

The spelling of 2159959 in words is "two million, one hundred fifty-nine thousand, nine hundred fifty-nine".