916225 has 12 divisors (see below), whose sum is σ = 1155184. Its totient is φ = 720720.

The previous prime is 916219. The next prime is 916259. The reversal of 916225 is 522619.

It is not a de Polignac number, because 916225 - 2³ = 916217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 916225.

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 in 11 ways as a sum of consecutive naturals, for example, 1402 + ... + 1948.

2⁹¹⁶²²⁵ is an apocalyptic number.

It is an amenable number.

916225 is a deficient number, since it is larger than the sum of its proper divisors (238959).

916225 is a wasteful number, since it uses less digits than its factorization.

916225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624 (or 619 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 916225 is about 957.1964270723. The cubic root of 916225 is about 97.1256740698.

The spelling of 916225 in words is "nine hundred sixteen thousand, two hundred twenty-five".