2117259 has 12 divisors (see below), whose sum is σ = 3171896. Its totient is φ = 1411344.

The previous prime is 2117239. The next prime is 2117273. The reversal of 2117259 is 9527112.

It is not a de Polignac number, because 2117259 - 2⁷ = 2117131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2117239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4114 + ... + 4599.

2^2117259 is an apocalyptic number.

2117259 is a deficient number, since it is larger than the sum of its proper divisors (1054637).

2117259 is an frugal number, since it uses more digits than its factorization.

2117259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8728 (or 8716 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 2117259 is about 1455.0804101492. The cubic root of 2117259 is about 128.4077775008.

The spelling of 2117259 in words is "two million, one hundred seventeen thousand, two hundred fifty-nine".