1340141441 has 4 divisors (see below), whose sum is σ = 1355199300. Its totient is φ = 1325083584.

The previous prime is 1340141431. The next prime is 1340141447. The reversal of 1340141441 is 1441410431.

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 230918416 + 1109223025 = 15196^2 + 33305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1340141441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340141447) 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 3 ways as a sum of consecutive naturals, for example, 7528796 + ... + 7528973.

It is an arithmetic number, because the mean of its divisors is an integer number (338799825).

Almost surely, 2^1340141441 is an apocalyptic number.

It is an amenable number.

1340141441 is a deficient number, since it is larger than the sum of its proper divisors (15057859).

1340141441 is an equidigital number, since it uses as much as digits as its factorization.

1340141441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15057858.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1340141441 is about 36607.9423213051. The cubic root of 1340141441 is about 1102.5125598842.

Adding to 1340141441 its reverse (1441410431), we get a palindrome (2781551872).

The spelling of 1340141441 in words is "one billion, three hundred forty million, one hundred forty-one thousand, four hundred forty-one".