1440131343 has 8 divisors (see below), whose sum is σ = 2194485888. Its totient is φ = 822932184.

The previous prime is 1440131333. The next prime is 1440131351. The reversal of 1440131343 is 3431310441.

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

It is not a de Polignac number, because 1440131343 - 2⁹ = 1440130831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440131333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34288821 + ... + 34288862.

It is an arithmetic number, because the mean of its divisors is an integer number (274310736).

Almost surely, 2^1440131343 is an apocalyptic number.

1440131343 is a deficient number, since it is larger than the sum of its proper divisors (754354545).

1440131343 is an equidigital number, since it uses as much as digits as its factorization.

1440131343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68577693.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1440131343 is about 37949.0624785383. The cubic root of 1440131343 is about 1129.2775665288.

Adding to 1440131343 its reverse (3431310441), we get a palindrome (4871441784).

The spelling of 1440131343 in words is "one billion, four hundred forty million, one hundred thirty-one thousand, three hundred forty-three".