247003297249 has 2 divisors, whose sum is σ = 247003297250. Its totient is φ = 247003297248.

The previous prime is 247003297237. The next prime is 247003297271. The reversal of 247003297249 is 942792300742.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236531459025 + 10471838224 = 486345^2 + 102332^2 .

It is a cyclic number.

It is not a de Polignac number, because 247003297249 - 2²⁷ = 246869079521 is a prime.

It is a super-2 number, since 2×247003297249² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (247003297549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123501648624 + 123501648625.

It is an arithmetic number, because the mean of its divisors is an integer number (123501648625).

Almost surely, 2^247003297249 is an apocalyptic number.

It is an amenable number.

247003297249 is a deficient number, since it is larger than the sum of its proper divisors (1).

247003297249 is an equidigital number, since it uses as much as digits as its factorization.

247003297249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 247003297249 in words is "two hundred forty-seven billion, three million, two hundred ninety-seven thousand, two hundred forty-nine".