1225250 has 48 divisors (see below), whose sum is σ = 2569320. Its totient is φ = 436800.

The previous prime is 1225223. The next prime is 1225261. The reversal of 1225250 is 525221.

It can be written as a sum of positive squares in 12 ways, for example, as 380689 + 844561 = 617^2 + 919^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42236 + ... + 42264.

2^1225250 is an apocalyptic number.

1225250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225250 is an abundant number, since it is smaller than the sum of its proper divisors (1344070).

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

1225250 is a wasteful number, since it uses less digits than its factorization.

1225250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 1225250 is about 1106.9101137852. The cubic root of 1225250 is about 107.0060263878.

The spelling of 1225250 in words is "one million, two hundred twenty-five thousand, two hundred fifty".