247057201 has 2 divisors, whose sum is σ = 247057202. Its totient is φ = 247057200.

The previous prime is 247057121. The next prime is 247057229. The reversal of 247057201 is 102750742.

It is an a-pointer prime, because the next prime (247057229) can be obtained adding 247057201 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234090000 + 12967201 = 15300^2 + 3601^2 .

It is a cyclic number.

It is not a de Polignac number, because 247057201 - 2¹¹ = 247055153 is a prime.

It is a super-2 number, since 2×247057201² = 122074521131908802, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247057201.

It is not a weakly prime, because it can be changed into another prime (247057301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123528600 + 123528601.

It is an arithmetic number, because the mean of its divisors is an integer number (123528601).

Almost surely, 2^247057201 is an apocalyptic number.

It is an amenable number.

247057201 is a deficient number, since it is larger than the sum of its proper divisors (1).

247057201 is an equidigital number, since it uses as much as digits as its factorization.

247057201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 247057201 is about 15718.0533463912. The cubic root of 247057201 is about 627.4789660838.

The spelling of 247057201 in words is "two hundred forty-seven million, fifty-seven thousand, two hundred one".