2145052255243 has 2 divisors, whose sum is σ = 2145052255244. Its totient is φ = 2145052255242.

The previous prime is 2145052255217. The next prime is 2145052255277. The reversal of 2145052255243 is 3425522505412.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2145052255243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2145052255196 and 2145052255205.

It is not a weakly prime, because it can be changed into another prime (2145052255343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072526127621 + 1072526127622.

It is an arithmetic number, because the mean of its divisors is an integer number (1072526127622).

Almost surely, 2^{2145052255243} is an apocalyptic number.

2145052255243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145052255243 is an equidigital number, since it uses as much as digits as its factorization.

2145052255243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480000, while the sum is 40.

The spelling of 2145052255243 in words is "two trillion, one hundred forty-five billion, fifty-two million, two hundred fifty-five thousand, two hundred forty-three".