1225072 has 20 divisors (see below), whose sum is σ = 2477520. Its totient is φ = 585728.

The previous prime is 1225067. The next prime is 1225073. The reversal of 1225072 is 2705221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225073) 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, 1297 + ... + 2032.

It is an arithmetic number, because the mean of its divisors is an integer number (123876).

2^1225072 is an apocalyptic number.

It is an amenable number.

1225072 is an abundant number, since it is smaller than the sum of its proper divisors (1252448).

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

1225072 is a wasteful number, since it uses less digits than its factorization.

1225072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360 (or 3354 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 1225072 is about 1106.8297068655. The cubic root of 1225072 is about 107.0008443174. Note that the first 3 decimals are identical.

The spelling of 1225072 in words is "one million, two hundred twenty-five thousand, seventy-two".