1855113 has 12 divisors (see below), whose sum is σ = 2679120. Its totient is φ = 1141296.

The previous prime is 1855109. The next prime is 1855123. The reversal of 1855113 is 3115581.

It is not a de Polignac number, because 1855113 - 2² = 1855109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1855123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1323 + ... + 2336.

It is an arithmetic number, because the mean of its divisors is an integer number (223260).

2^1855113 is an apocalyptic number.

1855113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1855113 is a deficient number, since it is larger than the sum of its proper divisors (824007).

1855113 is a wasteful number, since it uses less digits than its factorization.

1855113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3688 (or 3675 counting only the distinct ones).

The product of its digits is 600, while the sum is 24.

The square root of 1855113 is about 1362.0253301609. The cubic root of 1855113 is about 122.8730927166.

The spelling of 1855113 in words is "one million, eight hundred fifty-five thousand, one hundred thirteen".