1267146 has 48 divisors (see below), whose sum is σ = 3007368. Its totient is φ = 384000.

The previous prime is 1267127. The next prime is 1267151. The reversal of 1267146 is 6417621.

It can be written as a sum of positive squares in 4 ways, for example, as 1199025 + 68121 = 1095^2 + 261^2 .

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12496 + ... + 12596.

2^1267146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1267146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1503684).

1267146 is an abundant number, since it is smaller than the sum of its proper divisors (1740222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1267146 is a wasteful number, since it uses less digits than its factorization.

1267146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 164 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 1267146 is about 1125.6757970215. The cubic root of 1267146 is about 108.2120320134.

The spelling of 1267146 in words is "one million, two hundred sixty-seven thousand, one hundred forty-six".