1845413 has 4 divisors (see below), whose sum is σ = 1942560. Its totient is φ = 1748268.

The previous prime is 1845379. The next prime is 1845419. The reversal of 1845413 is 3145481.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1845413 - 2⁸ = 1845157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1845419) 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, 48545 + ... + 48582.

It is an arithmetic number, because the mean of its divisors is an integer number (485640).

2^1845413 is an apocalyptic number.

It is an amenable number.

1845413 is a deficient number, since it is larger than the sum of its proper divisors (97147).

1845413 is an equidigital number, since it uses as much as digits as its factorization.

1845413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97146.

The product of its digits is 1920, while the sum is 26.

The square root of 1845413 is about 1358.4597896147. The cubic root of 1845413 is about 122.6585590827.

The spelling of 1845413 in words is "one million, eight hundred forty-five thousand, four hundred thirteen".