1816325 has 24 divisors (see below), whose sum is σ = 2624832. Its totient is φ = 1221120.

The previous prime is 1816301. The next prime is 1816337. The reversal of 1816325 is 5236181.

It is not a de Polignac number, because 1816325 - 2⁶ = 1816261 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1816294 and 1816303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16922 + ... + 17028.

It is an arithmetic number, because the mean of its divisors is an integer number (109368).

2^1816325 is an apocalyptic number.

It is an amenable number.

1816325 is a deficient number, since it is larger than the sum of its proper divisors (808507).

1816325 is a wasteful number, since it uses less digits than its factorization.

1816325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 216 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 1816325 is about 1347.7110224377. The cubic root of 1816325 is about 122.0106816769.

The spelling of 1816325 in words is "one million, eight hundred sixteen thousand, three hundred twenty-five".