2231443045 has 12 divisors (see below), whose sum is σ = 2899556676. Its totient is φ = 1647834240.

The previous prime is 2231443007. The next prime is 2231443057. The reversal of 2231443045 is 5403441322.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 53260804 + 2178182241 = 7298^2 + 46671^2 .

It is not a de Polignac number, because 2231443045 - 2²¹ = 2229345893 is a prime.

It is a super-3 number, since 3×2231443045³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1319536 + ... + 1321225.

It is an arithmetic number, because the mean of its divisors is an integer number (241629723).

Almost surely, 2^2231443045 is an apocalyptic number.

It is an amenable number.

2231443045 is a deficient number, since it is larger than the sum of its proper divisors (668113631).

2231443045 is a wasteful number, since it uses less digits than its factorization.

2231443045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2640792 (or 2640779 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 2231443045 is about 47238.1524300009. The cubic root of 2231443045 is about 1306.7583047441.

Adding to 2231443045 its reverse (5403441322), we get a palindrome (7634884367).

The spelling of 2231443045 in words is "two billion, two hundred thirty-one million, four hundred forty-three thousand, forty-five".