1225012 has 6 divisors (see below), whose sum is σ = 2143778. Its totient is φ = 612504.

The previous prime is 1225009. The next prime is 1225019. The reversal of 1225012 is 2105221.

It can be written as a sum of positive squares in only one way, i.e., 781456 + 443556 = 884^2 + 666^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1224983 and 1225001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153123 + ... + 153130.

2^1225012 is an apocalyptic number.

It is an amenable number.

1225012 is a deficient number, since it is larger than the sum of its proper divisors (918766).

1225012 is a wasteful number, since it uses less digits than its factorization.

1225012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306257 (or 306255 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1225012 is about 1106.8026020931. The cubic root of 1225012 is about 106.9990974390. Note that the first 3 decimals are identical.

The spelling of 1225012 in words is "one million, two hundred twenty-five thousand, twelve".