1128212 has 6 divisors (see below), whose sum is σ = 1974378. Its totient is φ = 564104.

The previous prime is 1128209. The next prime is 1128223. The reversal of 1128212 is 2128211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 929296 + 198916 = 964^2 + 446^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141023 + ... + 141030.

It is an arithmetic number, because the mean of its divisors is an integer number (329063).

2^1128212 is an apocalyptic number.

It is an amenable number.

1128212 is a deficient number, since it is larger than the sum of its proper divisors (846166).

1128212 is a wasteful number, since it uses less digits than its factorization.

1128212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282057 (or 282055 counting only the distinct ones).

The product of its digits is 64, while the sum is 17.

The square root of 1128212 is about 1062.1732438731. The cubic root of 1128212 is about 104.1030782749.

Subtracting 1128212 from its reverse (2128211), we obtain a palindrome (999999).

The spelling of 1128212 in words is "one million, one hundred twenty-eight thousand, two hundred twelve".