2261465 has 4 divisors (see below), whose sum is σ = 2713764. Its totient is φ = 1809168.

The previous prime is 2261461. The next prime is 2261471. The reversal of 2261465 is 5641622.

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

It can be written as a sum of positive squares in 2 ways, for example, as 683929 + 1577536 = 827^2 + 1256^2 .

It is a cyclic number.

It is not a de Polignac number, because 2261465 - 2² = 2261461 is a prime.

It is a super-2 number, since 2×2261465² = 10228447892450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2261461) 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, 226142 + ... + 226151.

It is an arithmetic number, because the mean of its divisors is an integer number (678441).

2^2261465 is an apocalyptic number.

It is an amenable number.

2261465 is a deficient number, since it is larger than the sum of its proper divisors (452299).

2261465 is an equidigital number, since it uses as much as digits as its factorization.

2261465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452298.

The product of its digits is 2880, while the sum is 26.

The square root of 2261465 is about 1503.8168106521. The cubic root of 2261465 is about 131.2592616291.

The spelling of 2261465 in words is "two million, two hundred sixty-one thousand, four hundred sixty-five".