247113329 has 2 divisors, whose sum is σ = 247113330. Its totient is φ = 247113328.

The previous prime is 247113323. The next prime is 247113341. The reversal of 247113329 is 923311742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188238400 + 58874929 = 13720^2 + 7673^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-247113329 is a prime.

It is a super-2 number, since 2×247113329² = 122129994738924482, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 247113295 and 247113304.

It is not a weakly prime, because it can be changed into another prime (247113323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123556664 + 123556665.

It is an arithmetic number, because the mean of its divisors is an integer number (123556665).

Almost surely, 2^247113329 is an apocalyptic number.

It is an amenable number.

247113329 is a deficient number, since it is larger than the sum of its proper divisors (1).

247113329 is an equidigital number, since it uses as much as digits as its factorization.

247113329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 32.

The square root of 247113329 is about 15719.8387078239. The cubic root of 247113329 is about 627.5264806844.

The spelling of 247113329 in words is "two hundred forty-seven million, one hundred thirteen thousand, three hundred twenty-nine".