1825287 has 4 divisors (see below), whose sum is σ = 2433720. Its totient is φ = 1216856.

The previous prime is 1825277. The next prime is 1825297. The reversal of 1825287 is 7825281.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1825277) and next prime (1825297).

It is a cyclic number.

It is not a de Polignac number, because 1825287 - 2¹² = 1821191 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1825207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304212 + ... + 304217.

It is an arithmetic number, because the mean of its divisors is an integer number (608430).

2^1825287 is an apocalyptic number.

1825287 is a deficient number, since it is larger than the sum of its proper divisors (608433).

1825287 is an equidigital number, since it uses as much as digits as its factorization.

1825287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608432.

The product of its digits is 8960, while the sum is 33.

The square root of 1825287 is about 1351.0318279004. The cubic root of 1825287 is about 122.2110250838.

It can be divided in two parts, 1825 and 287, that added together give a palindrome (2112).

The spelling of 1825287 in words is "one million, eight hundred twenty-five thousand, two hundred eighty-seven".