1440201313 has 8 divisors (see below), whose sum is σ = 1446868800. Its totient is φ = 1433549808.

The previous prime is 1440201289. The next prime is 1440201331. The reversal of 1440201313 is 3131020441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1440201313 - 2²⁵ = 1406646881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1440201353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199908 + ... + 206986.

It is an arithmetic number, because the mean of its divisors is an integer number (180858600).

Almost surely, 2^1440201313 is an apocalyptic number.

It is an amenable number.

1440201313 is a deficient number, since it is larger than the sum of its proper divisors (6667487).

1440201313 is an equidigital number, since it uses as much as digits as its factorization.

1440201313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7991.

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

The square root of 1440201313 is about 37949.9843609981. The cubic root of 1440201313 is about 1129.2958552013.

Adding to 1440201313 its reverse (3131020441), we get a palindrome (4571221754).

The spelling of 1440201313 in words is "one billion, four hundred forty million, two hundred one thousand, three hundred thirteen".