1827145 has 8 divisors (see below), whose sum is σ = 2268360. Its totient is φ = 1411200.

The previous prime is 1827139. The next prime is 1827151. The reversal of 1827145 is 5417281.

It is an interprime number because it is at equal distance from previous prime (1827139) and next prime (1827151).

It can be written as a sum of positive squares in 4 ways, for example, as 116281 + 1710864 = 341^2 + 1308^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1827145 - 2⁷ = 1827017 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 6156 + ... + 6445.

It is an arithmetic number, because the mean of its divisors is an integer number (283545).

2^1827145 is an apocalyptic number.

It is an amenable number.

1827145 is a deficient number, since it is larger than the sum of its proper divisors (441215).

1827145 is a wasteful number, since it uses less digits than its factorization.

1827145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12635.

The product of its digits is 2240, while the sum is 28.

The square root of 1827145 is about 1351.7192755894. The cubic root of 1827145 is about 122.2524781233.

The spelling of 1827145 in words is "one million, eight hundred twenty-seven thousand, one hundred forty-five".