2159995 has 8 divisors (see below), whose sum is σ = 2615616. Its totient is φ = 1712256.

The previous prime is 2159959. The next prime is 2160001. The reversal of 2159995 is 5999512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2159995 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1347 + ... + 2476.

It is an arithmetic number, because the mean of its divisors is an integer number (326952).

2^2159995 is an apocalyptic number.

2159995 is a deficient number, since it is larger than the sum of its proper divisors (455621).

2159995 is a wasteful number, since it uses less digits than its factorization.

2159995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3941.

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

The square root of 2159995 is about 1469.6921446344. The cubic root of 2159995 is about 129.2659816595.

The spelling of 2159995 in words is "two million, one hundred fifty-nine thousand, nine hundred ninety-five".