3857141 has 2 divisors, whose sum is σ = 3857142. Its totient is φ = 3857140.

The previous prime is 3857137. The next prime is 3857153. The reversal of 3857141 is 1417583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3786916 + 70225 = 1946^2 + 265^2 .

It is an emirp because it is prime and its reverse (1417583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3857141 - 2² = 3857137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3857341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1928570 + 1928571.

It is an arithmetic number, because the mean of its divisors is an integer number (1928571).

Almost surely, 2^3857141 is an apocalyptic number.

It is an amenable number.

3857141 is a deficient number, since it is larger than the sum of its proper divisors (1).

3857141 is an equidigital number, since it uses as much as digits as its factorization.

3857141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 29.

The square root of 3857141 is about 1963.9605393184. The cubic root of 3857141 is about 156.8273624026.

The spelling of 3857141 in words is "three million, eight hundred fifty-seven thousand, one hundred forty-one".