1267312 has 20 divisors (see below), whose sum is σ = 2482480. Its totient is φ = 626688.

The previous prime is 1267307. The next prime is 1267349. The reversal of 1267312 is 2137621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1264 + ... + 2032.

It is an arithmetic number, because the mean of its divisors is an integer number (124124).

2^1267312 is an apocalyptic number.

It is an amenable number.

1267312 is a deficient number, since it is larger than the sum of its proper divisors (1215168).

1267312 is a wasteful number, since it uses less digits than its factorization.

1267312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880 (or 874 counting only the distinct ones).

The product of its digits is 504, while the sum is 22.

The square root of 1267312 is about 1125.7495280923. The cubic root of 1267312 is about 108.2167571761.

It can be divided in two parts, 12673 and 12, that multiplied together give a triangular number (152076 = T₅₅₁).

The spelling of 1267312 in words is "one million, two hundred sixty-seven thousand, three hundred twelve".