2261146 has 8 divisors (see below), whose sum is σ = 3407220. Its totient is φ = 1125408.

The previous prime is 2261143. The next prime is 2261173. The reversal of 2261146 is 6411622.

It can be written as a sum of positive squares in 2 ways, for example, as 2146225 + 114921 = 1465^2 + 339^2 .

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

It is a super-2 number, since 2×2261146² = 10225562466632, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2261143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2011 + ... + 2926.

2^2261146 is an apocalyptic number.

2261146 is a deficient number, since it is larger than the sum of its proper divisors (1146074).

2261146 is a wasteful number, since it uses less digits than its factorization.

2261146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5168.

The product of its digits is 576, while the sum is 22.

The square root of 2261146 is about 1503.7107434610. The cubic root of 2261146 is about 131.2530895720.

Adding to 2261146 its reverse (6411622), we get a palindrome (8672768).

The spelling of 2261146 in words is "two million, two hundred sixty-one thousand, one hundred forty-six".