919140659 has 2 divisors, whose sum is σ = 919140660. Its totient is φ = 919140658.

The previous prime is 919140623. The next prime is 919140679. The reversal of 919140659 is 956041919.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 919140659 - 2⁸ = 919140403 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (919140679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459570329 + 459570330.

It is an arithmetic number, because the mean of its divisors is an integer number (459570330).

Almost surely, 2^919140659 is an apocalyptic number.

919140659 is a deficient number, since it is larger than the sum of its proper divisors (1).

919140659 is an equidigital number, since it uses as much as digits as its factorization.

919140659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 919140659 is about 30317.3326498226. The cubic root of 919140659 is about 972.2859110681.

The spelling of 919140659 in words is "nine hundred nineteen million, one hundred forty thousand, six hundred fifty-nine".