142563193 has 2 divisors, whose sum is σ = 142563194. Its totient is φ = 142563192.

The previous prime is 142563181. The next prime is 142563209. The reversal of 142563193 is 391365241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113273449 + 29289744 = 10643^2 + 5412^2 .

It is an emirp because it is prime and its reverse (391365241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142563193 is a prime.

It is not a weakly prime, because it can be changed into another prime (142563133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71281596 + 71281597.

It is an arithmetic number, because the mean of its divisors is an integer number (71281597).

Almost surely, 2^142563193 is an apocalyptic number.

It is an amenable number.

142563193 is a deficient number, since it is larger than the sum of its proper divisors (1).

142563193 is an equidigital number, since it uses as much as digits as its factorization.

142563193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 142563193 is about 11939.9829564367. The cubic root of 142563193 is about 522.3991615724.

The spelling of 142563193 in words is "one hundred forty-two million, five hundred sixty-three thousand, one hundred ninety-three".