1232128 has 18 divisors (see below), whose sum is σ = 2459954. Its totient is φ = 615936.

The previous prime is 1232089. The next prime is 1232171. The reversal of 1232128 is 8212321.

It can be written as a sum of positive squares in only one way, i.e., 1149184 + 82944 = 1072^2 + 288^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2151 + ... + 2662.

2^1232128 is an apocalyptic number.

It is an amenable number.

1232128 is a deficient number, since it is larger than the sum of its proper divisors (1227826).

1232128 is an frugal number, since it uses more digits than its factorization.

1232128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4829 (or 4815 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 1232128 is about 1110.0126125410. The cubic root of 1232128 is about 107.2058807199.

Adding to 1232128 its reverse (8212321), we get a palindrome (9444449).

The spelling of 1232128 in words is "one million, two hundred thirty-two thousand, one hundred twenty-eight".