1225524 has 24 divisors (see below), whose sum is σ = 2900800. Its totient is φ = 402624.

The previous prime is 1225517. The next prime is 1225529. The reversal of 1225524 is 4255221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1225524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177 + ... + 1575.

2^1225524 is an apocalyptic number.

It is an amenable number.

1225524 is an abundant number, since it is smaller than the sum of its proper divisors (1675276).

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

1225524 is a wasteful number, since it uses less digits than its factorization.

1225524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479 (or 1477 counting only the distinct ones).

The product of its digits is 800, while the sum is 21.

The square root of 1225524 is about 1107.0338748205. The cubic root of 1225524 is about 107.0140023018.

The spelling of 1225524 in words is "one million, two hundred twenty-five thousand, five hundred twenty-four".