2261215 has 8 divisors (see below), whose sum is σ = 2960208. Its totient is φ = 1644480.

The previous prime is 2261213. The next prime is 2261219. The reversal of 2261215 is 5121622.

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

It is not a de Polignac number, because 2261215 - 2¹ = 2261213 is a prime.

It is a super-2 number, since 2×2261215² = 10226186552450, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁵ + 2¹⁷ + 6³ + 1 + 2²¹ + 1 + 5 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2261192 and 2261201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261213) 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, 20502 + ... + 20611.

It is an arithmetic number, because the mean of its divisors is an integer number (370026).

2^2261215 is an apocalyptic number.

2261215 is a deficient number, since it is larger than the sum of its proper divisors (698993).

2261215 is a wasteful number, since it uses less digits than its factorization.

2261215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41129.

The product of its digits is 240, while the sum is 19.

The square root of 2261215 is about 1503.7336865283. The cubic root of 2261215 is about 131.2544246430.

Adding to 2261215 its reverse (5121622), we get a palindrome (7382837).

It can be divided in two parts, 226 and 1215, that added together give a palindrome (1441).

The spelling of 2261215 in words is "two million, two hundred sixty-one thousand, two hundred fifteen".