2261659 has 8 divisors (see below), whose sum is σ = 2384640. Its totient is φ = 2140776.

The previous prime is 2261653. The next prime is 2261689. The reversal of 2261659 is 9561622.

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

It is a cyclic number.

It is not a de Polignac number, because 2261659 - 2⁷ = 2261531 is a prime.

It is a d-powerful number, because it can be written as 2¹⁶ + 2¹⁶ + 6⁴ + 1 + 6⁸ + 5⁸ + 9⁵ .

2261659 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2261659.

It is not an unprimeable number, because it can be changed into a prime (2261653) 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, 2002 + ... + 2920.

It is an arithmetic number, because the mean of its divisors is an integer number (298080).

2^2261659 is an apocalyptic number.

2261659 is a deficient number, since it is larger than the sum of its proper divisors (122981).

2261659 is a wasteful number, since it uses less digits than its factorization.

2261659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049.

The product of its digits is 6480, while the sum is 31.

The square root of 2261659 is about 1503.8813118062. The cubic root of 2261659 is about 131.2630148847.

The spelling of 2261659 in words is "two million, two hundred sixty-one thousand, six hundred fifty-nine".