2145454433 has 2 divisors, whose sum is σ = 2145454434. Its totient is φ = 2145454432.

The previous prime is 2145454403. The next prime is 2145454453. The reversal of 2145454433 is 3344545412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2129637904 + 15816529 = 46148^2 + 3977^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2145454433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2145454393 and 2145454402.

It is not a weakly prime, because it can be changed into another prime (2145454403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072727216 + 1072727217.

It is an arithmetic number, because the mean of its divisors is an integer number (1072727217).

Almost surely, 2^2145454433 is an apocalyptic number.

It is an amenable number.

2145454433 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145454433 is an equidigital number, since it uses as much as digits as its factorization.

2145454433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 115200, while the sum is 35.

The square root of 2145454433 is about 46319.0504328403. The cubic root of 2145454433 is about 1289.7526583452.

Adding to 2145454433 its reverse (3344545412), we get a palindrome (5489999845).

The spelling of 2145454433 in words is "two billion, one hundred forty-five million, four hundred fifty-four thousand, four hundred thirty-three".