247570241 has 2 divisors, whose sum is σ = 247570242. Its totient is φ = 247570240.

The previous prime is 247570237. The next prime is 247570277. The reversal of 247570241 is 142075742.

247570241 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., 205320241 + 42250000 = 14329^2 + 6500^2 .

It is a cyclic number.

It is not a de Polignac number, because 247570241 - 2² = 247570237 is a prime.

It is a super-2 number, since 2×247570241² = 122582048457596162, 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 = 247570198 and 247570207.

It is not a weakly prime, because it can be changed into another prime (244570241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123785120 + 123785121.

It is an arithmetic number, because the mean of its divisors is an integer number (123785121).

Almost surely, 2^247570241 is an apocalyptic number.

It is an amenable number.

247570241 is a deficient number, since it is larger than the sum of its proper divisors (1).

247570241 is an equidigital number, since it uses as much as digits as its factorization.

247570241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 247570241 is about 15734.3649697088. The cubic root of 247570241 is about 627.9130075790.

The spelling of 247570241 in words is "two hundred forty-seven million, five hundred seventy thousand, two hundred forty-one".