1266359 has 2 divisors, whose sum is σ = 1266360. Its totient is φ = 1266358.

The previous prime is 1266341. The next prime is 1266371. The reversal of 1266359 is 9536621.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1266359 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1266379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633179 + 633180.

It is an arithmetic number, because the mean of its divisors is an integer number (633180).

2^1266359 is an apocalyptic number.

1266359 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266359 is an equidigital number, since it uses as much as digits as its factorization.

1266359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 32.

The square root of 1266359 is about 1125.3261749377. The cubic root of 1266359 is about 108.1896245702.

The spelling of 1266359 in words is "one million, two hundred sixty-six thousand, three hundred fifty-nine".