249207193 has 2 divisors, whose sum is σ = 249207194. Its totient is φ = 249207192.

The previous prime is 249207191. The next prime is 249207223. The reversal of 249207193 is 391702942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144288144 + 104919049 = 12012^2 + 10243^2 .

It is a cyclic number.

It is not a de Polignac number, because 249207193 - 2¹ = 249207191 is a prime.

Together with 249207191, it forms a pair of twin primes.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (249207191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124603596 + 124603597.

It is an arithmetic number, because the mean of its divisors is an integer number (124603597).

Almost surely, 2^249207193 is an apocalyptic number.

It is an amenable number.

249207193 is a deficient number, since it is larger than the sum of its proper divisors (1).

249207193 is an equidigital number, since it uses as much as digits as its factorization.

249207193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 249207193 is about 15786.2976343410. The cubic root of 249207193 is about 629.2939036288.

The spelling of 249207193 in words is "two hundred forty-nine million, two hundred seven thousand, one hundred ninety-three".