1225712 has 10 divisors (see below), whose sum is σ = 2374848. Its totient is φ = 612848.

The previous prime is 1225703. The next prime is 1225723. The reversal of 1225712 is 2175221.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 38288 + ... + 38319.

2^1225712 is an apocalyptic number.

It is an amenable number.

1225712 is a deficient number, since it is larger than the sum of its proper divisors (1149136).

1225712 is an equidigital number, since it uses as much as digits as its factorization.

1225712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76615 (or 76609 counting only the distinct ones).

The product of its digits is 280, while the sum is 20.

The square root of 1225712 is about 1107.1187831484. The cubic root of 1225712 is about 107.0194741391.

The spelling of 1225712 in words is "one million, two hundred twenty-five thousand, seven hundred twelve".