245973193 has 2 divisors, whose sum is σ = 245973194. Its totient is φ = 245973192.

The previous prime is 245973191. The next prime is 245973199. The reversal of 245973193 is 391379542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161112249 + 84860944 = 12693^2 + 9212^2 .

It is a cyclic number.

It is not a de Polignac number, because 245973193 - 2¹ = 245973191 is a prime.

Together with 245973191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (245973191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122986596 + 122986597.

It is an arithmetic number, because the mean of its divisors is an integer number (122986597).

Almost surely, 2^245973193 is an apocalyptic number.

It is an amenable number.

245973193 is a deficient number, since it is larger than the sum of its proper divisors (1).

245973193 is an equidigital number, since it uses as much as digits as its factorization.

245973193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 43.

The square root of 245973193 is about 15683.5325421284. The cubic root of 245973193 is about 626.5598948858.

The spelling of 245973193 in words is "two hundred forty-five million, nine hundred seventy-three thousand, one hundred ninety-three".