1340343141 has 16 divisors (see below), whose sum is σ = 1863321600. Its totient is φ = 855949248.

The previous prime is 1340343139. The next prime is 1340343157. The reversal of 1340343141 is 1413430431.

It is not a de Polignac number, because 1340343141 - 2¹ = 1340343139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340342141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49606 + ... + 71703.

It is an arithmetic number, because the mean of its divisors is an integer number (116457600).

Almost surely, 2^1340343141 is an apocalyptic number.

It is an amenable number.

1340343141 is a deficient number, since it is larger than the sum of its proper divisors (522978459).

1340343141 is a wasteful number, since it uses less digits than its factorization.

1340343141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121468.

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

The square root of 1340343141 is about 36610.6970843222. The cubic root of 1340343141 is about 1102.5678688790.

Adding to 1340343141 its reverse (1413430431), we get a palindrome (2753773572).

The spelling of 1340343141 in words is "one billion, three hundred forty million, three hundred forty-three thousand, one hundred forty-one".