1278012 has 12 divisors (see below), whose sum is σ = 2982056. Its totient is φ = 426000.

The previous prime is 1278007. The next prime is 1278029. The reversal of 1278012 is 2108721.

1278012 is nontrivially palindromic in base 8.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1278012.

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, 53239 + ... + 53262.

2^1278012 is an apocalyptic number.

1278012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1278012 is an abundant number, since it is smaller than the sum of its proper divisors (1704044).

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

1278012 is a wasteful number, since it uses less digits than its factorization.

1278012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106508 (or 106506 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 1278012 is about 1130.4919283215. The cubic root of 1278012 is about 108.5204644729.

The spelling of 1278012 in words is "one million, two hundred seventy-eight thousand, twelve".