1440163 has 4 divisors (see below), whose sum is σ = 1447600. Its totient is φ = 1432728.

The previous prime is 1440119. The next prime is 1440203. The reversal of 1440163 is 3610441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3610441 = 677 ⋅5333.

It is a cyclic number.

It is not a de Polignac number, because 1440163 - 2⁹ = 1439651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1440163.

It is not an unprimeable number, because it can be changed into a prime (1440763) by changing a digit.

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, 3420 + ... + 3817.

It is an arithmetic number, because the mean of its divisors is an integer number (361900).

2^1440163 is an apocalyptic number.

1440163 is a deficient number, since it is larger than the sum of its proper divisors (7437).

1440163 is an equidigital number, since it uses as much as digits as its factorization.

1440163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7436.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1440163 is about 1200.0679147448. The cubic root of 1440163 is about 112.9285841070.

The spelling of 1440163 in words is "one million, four hundred forty thousand, one hundred sixty-three".