1845485 has 4 divisors (see below), whose sum is σ = 2214588. Its totient is φ = 1476384.

The previous prime is 1845463. The next prime is 1845491. The reversal of 1845485 is 5845481.

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

It can be written as a sum of positive squares in 2 ways, for example, as 948676 + 896809 = 974^2 + 947^2 .

It is a cyclic number.

It is not a de Polignac number, because 1845485 - 2⁶ = 1845421 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 184544 + ... + 184553.

It is an arithmetic number, because the mean of its divisors is an integer number (553647).

2^1845485 is an apocalyptic number.

It is an amenable number.

1845485 is a deficient number, since it is larger than the sum of its proper divisors (369103).

1845485 is an equidigital number, since it uses as much as digits as its factorization.

1845485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369102.

The product of its digits is 25600, while the sum is 35.

The square root of 1845485 is about 1358.4862899566. The cubic root of 1845485 is about 122.6601542633.

The spelling of 1845485 in words is "one million, eight hundred forty-five thousand, four hundred eighty-five".