1268147 has 2 divisors, whose sum is σ = 1268148. Its totient is φ = 1268146.

The previous prime is 1268143. The next prime is 1268167. The reversal of 1268147 is 7418621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1268147 - 2² = 1268143 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1268143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634073 + 634074.

It is an arithmetic number, because the mean of its divisors is an integer number (634074).

2^1268147 is an apocalyptic number.

1268147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268147 is an equidigital number, since it uses as much as digits as its factorization.

1268147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 29.

The square root of 1268147 is about 1126.1203310482. The cubic root of 1268147 is about 108.2405190579.

The spelling of 1268147 in words is "one million, two hundred sixty-eight thousand, one hundred forty-seven".