1268236247 has 2 divisors, whose sum is σ = 1268236248. Its totient is φ = 1268236246.

The previous prime is 1268236237. The next prime is 1268236253. The reversal of 1268236247 is 7426328621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1268236247 - 2¹⁴ = 1268219863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1268236237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634118123 + 634118124.

It is an arithmetic number, because the mean of its divisors is an integer number (634118124).

Almost surely, 2^1268236247 is an apocalyptic number.

1268236247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268236247 is an equidigital number, since it uses as much as digits as its factorization.

1268236247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 41.

The square root of 1268236247 is about 35612.3047133993. The cubic root of 1268236247 is about 1082.4305817340.

The spelling of 1268236247 in words is "one billion, two hundred sixty-eight million, two hundred thirty-six thousand, two hundred forty-seven".