2261279 has 4 divisors (see below), whose sum is σ = 2293200. Its totient is φ = 2229360.

The previous prime is 2261269. The next prime is 2261297. The reversal of 2261279 is 9721622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2261279 - 2⁸ = 2261023 is a prime.

It is a super-2 number, since 2×2261279² = 10226765431682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15854 + ... + 15995.

It is an arithmetic number, because the mean of its divisors is an integer number (573300).

2^2261279 is an apocalyptic number.

2261279 is a deficient number, since it is larger than the sum of its proper divisors (31921).

2261279 is an equidigital number, since it uses as much as digits as its factorization.

2261279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31920.

The product of its digits is 3024, while the sum is 29.

The square root of 2261279 is about 1503.7549667416. The cubic root of 2261279 is about 131.2556629454.

The spelling of 2261279 in words is "two million, two hundred sixty-one thousand, two hundred seventy-nine".