247023113 has 2 divisors, whose sum is σ = 247023114. Its totient is φ = 247023112.

The previous prime is 247023079. The next prime is 247023157. The reversal of 247023113 is 311320742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184090624 + 62932489 = 13568^2 + 7933^2 .

It is a cyclic number.

It is not a de Polignac number, because 247023113 - 2¹⁶ = 246957577 is a prime.

It is a super-2 number, since 2×247023113² = 122040836712421538, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (247023173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123511556 + 123511557.

It is an arithmetic number, because the mean of its divisors is an integer number (123511557).

Almost surely, 2^247023113 is an apocalyptic number.

It is an amenable number.

247023113 is a deficient number, since it is larger than the sum of its proper divisors (1).

247023113 is an equidigital number, since it uses as much as digits as its factorization.

247023113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 247023113 is about 15716.9689507869. The cubic root of 247023113 is about 627.4501057137.

Adding to 247023113 its reverse (311320742), we get a palindrome (558343855).

The spelling of 247023113 in words is "two hundred forty-seven million, twenty-three thousand, one hundred thirteen".