2245812321 has 8 divisors (see below), whose sum is σ = 2995245504. Its totient is φ = 1496793680.

The previous prime is 2245812307. The next prime is 2245812341. The reversal of 2245812321 is 1232185422.

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 2245812321 - 2¹⁰ = 2245811297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2245812341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90765 + ... + 112826.

It is an arithmetic number, because the mean of its divisors is an integer number (374405688).

Almost surely, 2^2245812321 is an apocalyptic number.

It is an amenable number.

2245812321 is a deficient number, since it is larger than the sum of its proper divisors (749433183).

2245812321 is a wasteful number, since it uses less digits than its factorization.

2245812321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207271.

The product of its digits is 7680, while the sum is 30.

The square root of 2245812321 is about 47390.0023317155. The cubic root of 2245812321 is about 1309.5572423269.

Adding to 2245812321 its reverse (1232185422), we get a palindrome (3477997743).

The spelling of 2245812321 in words is "two billion, two hundred forty-five million, eight hundred twelve thousand, three hundred twenty-one".