1245552372193 has 2 divisors, whose sum is σ = 1245552372194. Its totient is φ = 1245552372192.

The previous prime is 1245552372161. The next prime is 1245552372223. The reversal of 1245552372193 is 3912732555421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 635189872144 + 610362500049 = 796988^2 + 781257^2 .

It is a cyclic number.

It is not a de Polignac number, because 1245552372193 - 2⁵ = 1245552372161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1245552372593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622776186096 + 622776186097.

It is an arithmetic number, because the mean of its divisors is an integer number (622776186097).

Almost surely, 2^{1245552372193} is an apocalyptic number.

It is an amenable number.

1245552372193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245552372193 is an equidigital number, since it uses as much as digits as its factorization.

1245552372193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268000, while the sum is 49.

The spelling of 1245552372193 in words is "one trillion, two hundred forty-five billion, five hundred fifty-two million, three hundred seventy-two thousand, one hundred ninety-three".