2931225 has 72 divisors (see below), whose sum is σ = 5937120. Its totient is φ = 1267200.

The previous prime is 2931223. The next prime is 2931241. The reversal of 2931225 is 5221392.

2931225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2931225 - 2¹ = 2931223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2931195 and 2931204.

It is not an unprimeable number, because it can be changed into a prime (2931221) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 154266 + ... + 154284.

It is an arithmetic number, because the mean of its divisors is an integer number (82460).

2^2931225 is an apocalyptic number.

2931225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2931225 is an abundant number, since it is smaller than the sum of its proper divisors (3005895).

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

2931225 is a wasteful number, since it uses less digits than its factorization.

2931225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71 (or 55 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 2931225 is about 1712.0820657901. The cubic root of 2931225 is about 143.1143070264.

The spelling of 2931225 in words is "two million, nine hundred thirty-one thousand, two hundred twenty-five".