2159499 has 4 divisors (see below), whose sum is σ = 2879336. Its totient is φ = 1439664.

The previous prime is 2159497. The next prime is 2159501. The reversal of 2159499 is 9949512.

2159499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2159497) and next prime (2159501).

It is not a de Polignac number, because 2159499 - 2¹ = 2159497 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2159497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359914 + ... + 359919.

It is an arithmetic number, because the mean of its divisors is an integer number (719834).

2^2159499 is an apocalyptic number.

2159499 is a deficient number, since it is larger than the sum of its proper divisors (719837).

2159499 is an equidigital number, since it uses as much as digits as its factorization.

2159499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719836.

The product of its digits is 29160, while the sum is 39.

The square root of 2159499 is about 1469.5233921241. The cubic root of 2159499 is about 129.2560864460.

The spelling of 2159499 in words is "two million, one hundred fifty-nine thousand, four hundred ninety-nine".