14001865 has 4 divisors (see below), whose sum is σ = 16802244. Its totient is φ = 11201488.

The previous prime is 14001769. The next prime is 14001907. The reversal of 14001865 is 56810041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56810041 = 3067 ⋅18523.

It can be written as a sum of positive squares in 2 ways, for example, as 10942864 + 3059001 = 3308^2 + 1749^2 .

It is a cyclic number.

It is not a de Polignac number, because 14001865 - 2¹⁹ = 13477577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1400182 + ... + 1400191.

It is an arithmetic number, because the mean of its divisors is an integer number (4200561).

Almost surely, 2^14001865 is an apocalyptic number.

It is an amenable number.

14001865 is a deficient number, since it is larger than the sum of its proper divisors (2800379).

14001865 is an equidigital number, since it uses as much as digits as its factorization.

14001865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2800378.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 14001865 is about 3741.9065995826. The cubic root of 14001865 is about 241.0249281217.

The spelling of 14001865 in words is "fourteen million, one thousand, eight hundred sixty-five".