2191059 has 24 divisors (see below), whose sum is σ = 3475472. Its totient is φ = 1321920.

The previous prime is 2191051. The next prime is 2191067. The reversal of 2191059 is 9501912.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2191051) and next prime (2191067).

It is not a de Polignac number, because 2191059 - 2³ = 2191051 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2191051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6984 + ... + 7290.

2^2191059 is an apocalyptic number.

2191059 is a deficient number, since it is larger than the sum of its proper divisors (1284413).

2191059 is a wasteful number, since it uses less digits than its factorization.

2191059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 2191059 is about 1480.2226183922. Note that the first 3 decimals coincide. The cubic root of 2191059 is about 129.8827147305.

The spelling of 2191059 in words is "two million, one hundred ninety-one thousand, fifty-nine".