2245132421 has 12 divisors (see below), whose sum is σ = 2765314188. Its totient is φ = 1811198592.

The previous prime is 2245132403. The next prime is 2245132433. The reversal of 2245132421 is 1242315422.

It can be written as a sum of positive squares in 2 ways, for example, as 1992640321 + 252492100 = 44639^2 + 15890^2 .

It is not a de Polignac number, because 2245132421 - 2¹⁴ = 2245116037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245132451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1346786 + ... + 1348451.

It is an arithmetic number, because the mean of its divisors is an integer number (230442849).

Almost surely, 2^2245132421 is an apocalyptic number.

It is an amenable number.

2245132421 is a deficient number, since it is larger than the sum of its proper divisors (520181767).

2245132421 is a wasteful number, since it uses less digits than its factorization.

2245132421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695268 (or 2695261 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 2245132421 is about 47382.8283347459. The cubic root of 2245132421 is about 1309.4250766622.

Adding to 2245132421 its reverse (1242315422), we get a palindrome (3487447843).

It can be divided in two parts, 22451 and 32421, that added together give a cube (54872 = 38³).

The spelling of 2245132421 in words is "two billion, two hundred forty-five million, one hundred thirty-two thousand, four hundred twenty-one".