2231045 has 8 divisors (see below), whose sum is σ = 2697624. Its totient is φ = 1771264.

The previous prime is 2231027. The next prime is 2231051. The reversal of 2231045 is 5401322.

It can be written as a sum of positive squares in 4 ways, for example, as 638401 + 1592644 = 799^2 + 1262^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2231045 - 2¹⁰ = 2230021 is a prime.

It is a super-3 number, since 3×2231045³ = 33315493044865248375, which contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 944 + ... + 2313.

It is an arithmetic number, because the mean of its divisors is an integer number (337203).

2^2231045 is an apocalyptic number.

It is an amenable number.

2231045 is a deficient number, since it is larger than the sum of its proper divisors (466579).

2231045 is a wasteful number, since it uses less digits than its factorization.

2231045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3399.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2231045 is about 1493.6683032052. The cubic root of 2231045 is about 130.6680600238.

Adding to 2231045 its reverse (5401322), we get a palindrome (7632367).

The spelling of 2231045 in words is "two million, two hundred thirty-one thousand, forty-five".