2158089 has 8 divisors (see below), whose sum is σ = 2891040. Its totient is φ = 1431936.

The previous prime is 2158087. The next prime is 2158097. The reversal of 2158089 is 9808512.

It is a happy number.

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

It is not a de Polignac number, because 2158089 - 2¹ = 2158087 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (2158081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 904 + ... + 2265.

It is an arithmetic number, because the mean of its divisors is an integer number (361380).

2^2158089 is an apocalyptic number.

It is an amenable number.

2158089 is a deficient number, since it is larger than the sum of its proper divisors (732951).

2158089 is a wasteful number, since it uses less digits than its factorization.

2158089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3399.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 2158089 is about 1469.0435664064. The cubic root of 2158089 is about 129.2279486291.

The spelling of 2158089 in words is "two million, one hundred fifty-eight thousand, eighty-nine".