1267144 has 8 divisors (see below), whose sum is σ = 2375910. Its totient is φ = 633568.

The previous prime is 1267127. The next prime is 1267151. The reversal of 1267144 is 4417621.

It can be written as a sum of positive squares in only one way, i.e., 722500 + 544644 = 850^2 + 738^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79189 + ... + 79204.

2^1267144 is an apocalyptic number.

It is an amenable number.

1267144 is a deficient number, since it is larger than the sum of its proper divisors (1108766).

1267144 is a wasteful number, since it uses less digits than its factorization.

1267144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158399 (or 158395 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 1267144 is about 1125.6749086659. The cubic root of 1267144 is about 108.2119750812.

The spelling of 1267144 in words is "one million, two hundred sixty-seven thousand, one hundred forty-four".