1853081 has 2 divisors, whose sum is σ = 1853082. Its totient is φ = 1853080.

The previous prime is 1853063. The next prime is 1853083. The reversal of 1853081 is 1803581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1849600 + 3481 = 1360^2 + 59^2 .

It is a cyclic number.

It is not a de Polignac number, because 1853081 - 2¹⁰ = 1852057 is a prime.

It is a super-2 number, since 2×1853081² = 6867818385122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1853083, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1853081.

It is not a weakly prime, because it can be changed into another prime (1853083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 926540 + 926541.

It is an arithmetic number, because the mean of its divisors is an integer number (926541).

2^1853081 is an apocalyptic number.

It is an amenable number.

1853081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1853081 is an equidigital number, since it uses as much as digits as its factorization.

1853081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 1853081 is about 1361.2791778324. The cubic root of 1853081 is about 122.8282132687.

The spelling of 1853081 in words is "one million, eight hundred fifty-three thousand, eighty-one".