247302241 has 2 divisors, whose sum is σ = 247302242. Its totient is φ = 247302240.

The previous prime is 247302229. The next prime is 247302313. The reversal of 247302241 is 142203742.

It is a happy number.

247302241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155525841 + 91776400 = 12471^2 + 9580^2 .

It is a cyclic number.

It is not a de Polignac number, because 247302241 - 2²⁷ = 113084513 is a prime.

It is a super-2 number, since 2×247302241² = 122316796807244162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (247308241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123651120 + 123651121.

It is an arithmetic number, because the mean of its divisors is an integer number (123651121).

Almost surely, 2^247302241 is an apocalyptic number.

It is an amenable number.

247302241 is a deficient number, since it is larger than the sum of its proper divisors (1).

247302241 is an equidigital number, since it uses as much as digits as its factorization.

247302241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 247302241 is about 15725.8462729355. The cubic root of 247302241 is about 627.6863494202.

Adding to 247302241 its reverse (142203742), we get a palindrome (389505983).

The spelling of 247302241 in words is "two hundred forty-seven million, three hundred two thousand, two hundred forty-one".