1239128 has 16 divisors (see below), whose sum is σ = 2534760. Its totient is φ = 563200.

The previous prime is 1239127. The next prime is 1239151. The reversal of 1239128 is 8219321.

It is a junction number, because it is equal to n+sod(n) for n = 1239097 and 1239106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1239127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6953 + ... + 7128.

2^1239128 is an apocalyptic number.

It is an amenable number.

1239128 is an abundant number, since it is smaller than the sum of its proper divisors (1295632).

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

1239128 is a wasteful number, since it uses less digits than its factorization.

1239128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14098 (or 14094 counting only the distinct ones).

The product of its digits is 864, while the sum is 26.

The square root of 1239128 is about 1113.1612641482. The cubic root of 1239128 is about 107.4085178083.

The spelling of 1239128 in words is "one million, two hundred thirty-nine thousand, one hundred twenty-eight".