1267159 has 2 divisors, whose sum is σ = 1267160. Its totient is φ = 1267158.

The previous prime is 1267157. The next prime is 1267183. The reversal of 1267159 is 9517621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1267159 - 2¹ = 1267157 is a prime.

Together with 1267157, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1267159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1267151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633579 + 633580.

It is an arithmetic number, because the mean of its divisors is an integer number (633580).

2^1267159 is an apocalyptic number.

1267159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1267159 is an equidigital number, since it uses as much as digits as its factorization.

1267159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 31.

The square root of 1267159 is about 1125.6815713158. The cubic root of 1267159 is about 108.2124020712.

The spelling of 1267159 in words is "one million, two hundred sixty-seven thousand, one hundred fifty-nine".