1243002193 has 2 divisors, whose sum is σ = 1243002194. Its totient is φ = 1243002192.

The previous prime is 1243002143. The next prime is 1243002203. The reversal of 1243002193 is 3912003421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1124126784 + 118875409 = 33528^2 + 10903^2 .

It is a cyclic number.

It is not a de Polignac number, because 1243002193 - 2⁹ = 1243001681 is a prime.

It is not a weakly prime, because it can be changed into another prime (1243002113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621501096 + 621501097.

It is an arithmetic number, because the mean of its divisors is an integer number (621501097).

Almost surely, 2^1243002193 is an apocalyptic number.

It is an amenable number.

1243002193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243002193 is an equidigital number, since it uses as much as digits as its factorization.

1243002193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1243002193 is about 35256.2362285029. The cubic root of 1243002193 is about 1075.2034063991.

The spelling of 1243002193 in words is "one billion, two hundred forty-three million, two thousand, one hundred ninety-three".