1267166 has 4 divisors (see below), whose sum is σ = 1900752. Its totient is φ = 633582.

The previous prime is 1267159. The next prime is 1267183. The reversal of 1267166 is 6617621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6617621 = 101 ⋅65521.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

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, 316790 + ... + 316793.

It is an arithmetic number, because the mean of its divisors is an integer number (475188).

2^1267166 is an apocalyptic number.

1267166 is a deficient number, since it is larger than the sum of its proper divisors (633586).

1267166 is an equidigital number, since it uses as much as digits as its factorization.

1267166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633585.

The product of its digits is 3024, while the sum is 29.

The square root of 1267166 is about 1125.6846805389. The cubic root of 1267166 is about 108.2126013320.

The spelling of 1267166 in words is "one million, two hundred sixty-seven thousand, one hundred sixty-six".