2190225 has 48 divisors (see below), whose sum is σ = 4017600. Its totient is φ = 1048320.

The previous prime is 2190217. The next prime is 2190233. The reversal of 2190225 is 5220912.

It is an interprime number because it is at equal distance from previous prime (2190217) and next prime (2190233).

It is not a de Polignac number, because 2190225 - 2³ = 2190217 is a prime.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41299 + ... + 41351.

It is an arithmetic number, because the mean of its divisors is an integer number (83700).

2^2190225 is an apocalyptic number.

2190225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2190225 is a deficient number, since it is larger than the sum of its proper divisors (1827375).

2190225 is a wasteful number, since it uses less digits than its factorization.

2190225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 2190225 is about 1479.9408771975. The cubic root of 2190225 is about 129.8662332132.

It can be divided in two parts, 2190 and 225, that added together give a triangular number (2415 = T₆₉).

The spelling of 2190225 in words is "two million, one hundred ninety thousand, two hundred twenty-five".