1340152811 has 2 divisors, whose sum is σ = 1340152812. Its totient is φ = 1340152810.

The previous prime is 1340152747. The next prime is 1340152813. The reversal of 1340152811 is 1182510431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1340152811 - 2⁶ = 1340152747 is a prime.

Together with 1340152813, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1340152813) 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 as a sum of consecutive naturals, namely, 670076405 + 670076406.

It is an arithmetic number, because the mean of its divisors is an integer number (670076406).

Almost surely, 2^1340152811 is an apocalyptic number.

1340152811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340152811 is an equidigital number, since it uses as much as digits as its factorization.

1340152811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 1340152811 is about 36608.0976151452. The cubic root of 1340152811 is about 1102.5156778467.

The spelling of 1340152811 in words is "one billion, three hundred forty million, one hundred fifty-two thousand, eight hundred eleven".