1857113 has 2 divisors, whose sum is σ = 1857114. Its totient is φ = 1857112.

The previous prime is 1857109. The next prime is 1857139. The reversal of 1857113 is 3117581.

It is an a-pointer prime, because the next prime (1857139) can be obtained adding 1857113 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1261129 + 595984 = 1123^2 + 772^2 .

It is a cyclic number.

It is not a de Polignac number, because 1857113 - 2² = 1857109 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1857313) by changing a digit.

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 as a sum of consecutive naturals, namely, 928556 + 928557.

It is an arithmetic number, because the mean of its divisors is an integer number (928557).

2^1857113 is an apocalyptic number.

It is an amenable number.

1857113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1857113 is an equidigital number, since it uses as much as digits as its factorization.

1857113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 26.

The square root of 1857113 is about 1362.7593331179. The cubic root of 1857113 is about 122.9172334105.

The spelling of 1857113 in words is "one million, eight hundred fifty-seven thousand, one hundred thirteen".