1340302141 has 4 divisors (see below), whose sum is σ = 1340470300. Its totient is φ = 1340133984.

The previous prime is 1340302129. The next prime is 1340302169. The reversal of 1340302141 is 1412030431.

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 1097596900 + 242705241 = 33130^2 + 15579^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340302141 - 2⁵ = 1340302109 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 (1340302181) 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, 71496 + ... + 88273.

It is an arithmetic number, because the mean of its divisors is an integer number (335117575).

Almost surely, 2^1340302141 is an apocalyptic number.

It is an amenable number.

1340302141 is a deficient number, since it is larger than the sum of its proper divisors (168159).

1340302141 is an equidigital number, since it uses as much as digits as its factorization.

1340302141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168158.

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

The square root of 1340302141 is about 36610.1371344058. The cubic root of 1340302141 is about 1102.5566265480.

Adding to 1340302141 its reverse (1412030431), we get a palindrome (2752332572).

The spelling of 1340302141 in words is "one billion, three hundred forty million, three hundred two thousand, one hundred forty-one".