2261087 has 8 divisors (see below), whose sum is σ = 2327232. Its totient is φ = 2196000.

The previous prime is 2261071. The next prime is 2261093. The reversal of 2261087 is 7801622.

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

It is not a de Polignac number, because 2261087 - 2⁴ = 2261071 is a prime.

It is a super-2 number, since 2×2261087² = 10225028843138, 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 (2261587) 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, 5978 + ... + 6344.

It is an arithmetic number, because the mean of its divisors is an integer number (290904).

2^2261087 is an apocalyptic number.

2261087 is a deficient number, since it is larger than the sum of its proper divisors (66145).

2261087 is a wasteful number, since it uses less digits than its factorization.

2261087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 2261087 is about 1503.6911251983. The cubic root of 2261087 is about 131.2519479681.

The spelling of 2261087 in words is "two million, two hundred sixty-one thousand, eighty-seven".