1285912 has 8 divisors (see below), whose sum is σ = 2411100. Its totient is φ = 642952.

The previous prime is 1285903. The next prime is 1285913. The reversal of 1285912 is 2195821.

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

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285913) by changing a digit.

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 as a sum of consecutive naturals, namely, 80362 + ... + 80377.

2^1285912 is an apocalyptic number.

It is an amenable number.

1285912 is a deficient number, since it is larger than the sum of its proper divisors (1125188).

1285912 is a wasteful number, since it uses less digits than its factorization.

1285912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160745 (or 160741 counting only the distinct ones).

The product of its digits is 1440, while the sum is 28.

The square root of 1285912 is about 1133.9805994813. The cubic root of 1285912 is about 108.7436108458.

Subtracting 1285912 from its reverse (2195821), we obtain a palindrome (909909).

It can be divided in two parts, 1285 and 912, that added together give a cube (2197 = 13³).

The spelling of 1285912 in words is "one million, two hundred eighty-five thousand, nine hundred twelve".