1340103139 has 4 divisors (see below), whose sum is σ = 1341239040. Its totient is φ = 1338967240.

The previous prime is 1340103133. The next prime is 1340103157. The reversal of 1340103139 is 9313010431.

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 1340103139 - 2²¹ = 1338005987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340103133) 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, 566179 + ... + 568540.

It is an arithmetic number, because the mean of its divisors is an integer number (335309760).

Almost surely, 2^1340103139 is an apocalyptic number.

1340103139 is a deficient number, since it is larger than the sum of its proper divisors (1135901).

1340103139 is a wasteful number, since it uses less digits than its factorization.

1340103139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135900.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 1340103139 is about 36607.4191797237. The cubic root of 1340103139 is about 1102.5020563067.

The spelling of 1340103139 in words is "one billion, three hundred forty million, one hundred three thousand, one hundred thirty-nine".