1289124 has 18 divisors (see below), whose sum is σ = 3258710. Its totient is φ = 429696.

The previous prime is 1289111. The next prime is 1289129. The reversal of 1289124 is 4219821.

It can be written as a sum of positive squares in only one way, i.e., 1102500 + 186624 = 1050^2 + 432^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (1289129) 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 in 5 ways as a sum of consecutive naturals, for example, 17869 + ... + 17940.

2^1289124 is an apocalyptic number.

It is an amenable number.

1289124 is an abundant number, since it is smaller than the sum of its proper divisors (1969586).

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

1289124 is a wasteful number, since it uses less digits than its factorization.

1289124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35819 (or 35814 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 1289124 is about 1135.3959661722. The cubic root of 1289124 is about 108.8340768762.

The spelling of 1289124 in words is "one million, two hundred eighty-nine thousand, one hundred twenty-four".