1810025 has 12 divisors (see below), whose sum is σ = 2565312. Its totient is φ = 1241040.

The previous prime is 1810013. The next prime is 1810033. The reversal of 1810025 is 5200181.

It is not a de Polignac number, because 1810025 - 2¹⁸ = 1547881 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 1809985 and 1810012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4997 + ... + 5346.

It is an arithmetic number, because the mean of its divisors is an integer number (213776).

2^1810025 is an apocalyptic number.

It is an amenable number.

1810025 is a deficient number, since it is larger than the sum of its proper divisors (755287).

1810025 is a wasteful number, since it uses less digits than its factorization.

1810025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10360 (or 10355 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1810025 is about 1345.3716958521. The cubic root of 1810025 is about 121.8694518623.

The spelling of 1810025 in words is "one million, eight hundred ten thousand, twenty-five".