1910225 has 12 divisors (see below), whose sum is σ = 2393820. Its totient is φ = 1512000.

The previous prime is 1910179. The next prime is 1910257. The reversal of 1910225 is 5220191.

It can be written as a sum of positive squares in 6 ways, for example, as 49729 + 1860496 = 223^2 + 1364^2 .

It is not a de Polignac number, because 1910225 - 2¹⁸ = 1648081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1910197 and 1910206.

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, 2375 + ... + 3075.

It is an arithmetic number, because the mean of its divisors is an integer number (199485).

2^1910225 is an apocalyptic number.

It is an amenable number.

1910225 is a deficient number, since it is larger than the sum of its proper divisors (483595).

1910225 is a wasteful number, since it uses less digits than its factorization.

1910225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1910225 is about 1382.1088958544. The cubic root of 1910225 is about 124.0780162880.

The spelling of 1910225 in words is "one million, nine hundred ten thousand, two hundred twenty-five".