1340481071 has 4 divisors (see below), whose sum is σ = 1342444392. Its totient is φ = 1338517752.

The previous prime is 1340481067. The next prime is 1340481089. The reversal of 1340481071 is 1701840431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1340481071 - 2² = 1340481067 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340481001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 980636 + ... + 982001.

It is an arithmetic number, because the mean of its divisors is an integer number (335611098).

Almost surely, 2^1340481071 is an apocalyptic number.

1340481071 is a deficient number, since it is larger than the sum of its proper divisors (1963321).

1340481071 is an equidigital number, since it uses as much as digits as its factorization.

1340481071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963320.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 1340481071 is about 36612.5807749194. The cubic root of 1340481071 is about 1102.6056880426.

The spelling of 1340481071 in words is "one billion, three hundred forty million, four hundred eighty-one thousand, seventy-one".