1289012 has 12 divisors (see below), whose sum is σ = 2354016. Its totient is φ = 616440.

The previous prime is 1289009. The next prime is 1289027. The reversal of 1289012 is 2109821.

It is a super-2 number, since 2×1289012² = 3323103872288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 6914 + ... + 7097.

It is an arithmetic number, because the mean of its divisors is an integer number (196168).

2^1289012 is an apocalyptic number.

It is an amenable number.

1289012 is a deficient number, since it is larger than the sum of its proper divisors (1065004).

1289012 is a wasteful number, since it uses less digits than its factorization.

1289012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14038 (or 14036 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1289012 is about 1135.3466431007. The cubic root of 1289012 is about 108.8309249246.

The spelling of 1289012 in words is "one million, two hundred eighty-nine thousand, twelve".