2122659 has 32 divisors (see below), whose sum is σ = 3924480. Its totient is φ = 1101600.

The previous prime is 2122657. The next prime is 2122667. The reversal of 2122659 is 9562212.

2122659 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 659 = 666.

It is not a de Polignac number, because 2122659 - 2¹ = 2122657 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 not an unprimeable number, because it can be changed into a prime (2122657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1569 + ... + 2589.

It is an arithmetic number, because the mean of its divisors is an integer number (122640).

2^2122659 is an apocalyptic number.

2122659 is a deficient number, since it is larger than the sum of its proper divisors (1801821).

2122659 is a wasteful number, since it uses less digits than its factorization.

2122659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048 (or 1042 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 2122659 is about 1456.9347960702. The cubic root of 2122659 is about 128.5168514391.

The spelling of 2122659 in words is "two million, one hundred twenty-two thousand, six hundred fifty-nine".