1853161 has 2 divisors, whose sum is σ = 1853162. Its totient is φ = 1853160.

The previous prime is 1853107. The next prime is 1853167. The reversal of 1853161 is 1613581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1577536 + 275625 = 1256^2 + 525^2 .

It is a cyclic number.

It is not a de Polignac number, because 1853161 - 2⁹ = 1852649 is a prime.

It is not a weakly prime, because it can be changed into another prime (1853167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 926580 + 926581.

It is an arithmetic number, because the mean of its divisors is an integer number (926581).

2^1853161 is an apocalyptic number.

It is an amenable number.

1853161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1853161 is an equidigital number, since it uses as much as digits as its factorization.

1853161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 25.

The square root of 1853161 is about 1361.3085616421. The cubic root of 1853161 is about 122.8299807964.

The spelling of 1853161 in words is "one million, eight hundred fifty-three thousand, one hundred sixty-one".