1340575507 has 2 divisors, whose sum is σ = 1340575508. Its totient is φ = 1340575506.

The previous prime is 1340575471. The next prime is 1340575517. The reversal of 1340575507 is 7055750431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1340575507 - 2²³ = 1332186899 is a prime.

It is not a weakly prime, because it can be changed into another prime (1340575517) 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, 670287753 + 670287754.

It is an arithmetic number, because the mean of its divisors is an integer number (670287754).

Almost surely, 2^1340575507 is an apocalyptic number.

1340575507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340575507 is an equidigital number, since it uses as much as digits as its factorization.

1340575507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73500, while the sum is 37.

The square root of 1340575507 is about 36613.8704181899. The cubic root of 1340575507 is about 1102.6315800471.

The spelling of 1340575507 in words is "one billion, three hundred forty million, five hundred seventy-five thousand, five hundred seven".