1340212163 has 2 divisors, whose sum is σ = 1340212164. Its totient is φ = 1340212162.

The previous prime is 1340212109. The next prime is 1340212193. The reversal of 1340212163 is 3612120431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1340212163 - 2⁶ = 1340212099 is a prime.

It is not a weakly prime, because it can be changed into another prime (1340212193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670106081 + 670106082.

It is an arithmetic number, because the mean of its divisors is an integer number (670106082).

Almost surely, 2^1340212163 is an apocalyptic number.

1340212163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340212163 is an equidigital number, since it uses as much as digits as its factorization.

1340212163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1340212163 is about 36608.9082464910. The cubic root of 1340212163 is about 1102.5319534893.

Adding to 1340212163 its reverse (3612120431), we get a palindrome (4952332594).

The spelling of 1340212163 in words is "one billion, three hundred forty million, two hundred twelve thousand, one hundred sixty-three".