2261229 has 4 divisors (see below), whose sum is σ = 3014976. Its totient is φ = 1507484.

The previous prime is 2261227. The next prime is 2261267. The reversal of 2261229 is 9221622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2261229 - 2¹ = 2261227 is a prime.

It is a super-2 number, since 2×2261229² = 10226313180882, which contains 22 as substring.

It is a D-number.

2261229 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2261199 and 2261208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261227) 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, 376869 + ... + 376874.

It is an arithmetic number, because the mean of its divisors is an integer number (753744).

2^2261229 is an apocalyptic number.

It is an amenable number.

2261229 is a deficient number, since it is larger than the sum of its proper divisors (753747).

2261229 is an equidigital number, since it uses as much as digits as its factorization.

2261229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753746.

The product of its digits is 864, while the sum is 24.

The square root of 2261229 is about 1503.7383416007. The cubic root of 2261229 is about 131.2546955236.

The spelling of 2261229 in words is "two million, two hundred sixty-one thousand, two hundred twenty-nine".