3141865 has 4 divisors (see below), whose sum is σ = 3770244. Its totient is φ = 2513488.

The previous prime is 3141863. The next prime is 3141877. The reversal of 3141865 is 5681413.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 698896 + 2442969 = 836^2 + 1563^2 .

It is a cyclic number.

It is not a de Polignac number, because 3141865 - 2¹ = 3141863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3141863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314182 + ... + 314191.

It is an arithmetic number, because the mean of its divisors is an integer number (942561).

Almost surely, 2^3141865 is an apocalyptic number.

It is an amenable number.

3141865 is a deficient number, since it is larger than the sum of its proper divisors (628379).

3141865 is an equidigital number, since it uses as much as digits as its factorization.

3141865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628378.

The product of its digits is 2880, while the sum is 28.

The square root of 3141865 is about 1772.5306767444. The cubic root of 3141865 is about 146.4634208433.

The spelling of 3141865 in words is "three million, one hundred forty-one thousand, eight hundred sixty-five".