920225 has 6 divisors (see below), whose sum is σ = 1141110. Its totient is φ = 736160.

The previous prime is 920219. The next prime is 920233. The reversal of 920225 is 522029.

It can be written as a sum of positive squares in 3 ways, for example, as 30976 + 889249 = 176^2 + 943^2 .

It is not a de Polignac number, because 920225 - 2⁴ = 920209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 920197 and 920206.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 920225.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18380 + ... + 18429.

It is an arithmetic number, because the mean of its divisors is an integer number (190185).

2⁹²⁰²²⁵ is an apocalyptic number.

It is an amenable number.

920225 is a deficient number, since it is larger than the sum of its proper divisors (220885).

920225 is a wasteful number, since it uses less digits than its factorization.

920225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36819 (or 36814 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 920225 is about 959.2835868501. The cubic root of 920225 is about 97.2668106889.

The spelling of 920225 in words is "nine hundred twenty thousand, two hundred twenty-five".