84081225 has 12 divisors (see below), whose sum is σ = 139014416. Its totient is φ = 44843280.

The previous prime is 84081199. The next prime is 84081233. The reversal of 84081225 is 52218048.

It is not a de Polignac number, because 84081225 - 2¹⁰ = 84080201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84081192 and 84081201.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 560467 + ... + 560616.

Almost surely, 2^84081225 is an apocalyptic number.

It is an amenable number.

84081225 is a deficient number, since it is larger than the sum of its proper divisors (54933191).

84081225 is a wasteful number, since it uses less digits than its factorization.

84081225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121096 (or 1121091 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 84081225 is about 9169.5815062630. The cubic root of 84081225 is about 438.0930298005.

The spelling of 84081225 in words is "eighty-four million, eighty-one thousand, two hundred twenty-five".