1138157659 has 2 divisors, whose sum is σ = 1138157660. Its totient is φ = 1138157658.

The previous prime is 1138157651. The next prime is 1138157689. The reversal of 1138157659 is 9567518311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1138157659 - 2³ = 1138157651 is a prime.

It is not a weakly prime, because it can be changed into another prime (1138157651) 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, 569078829 + 569078830.

It is an arithmetic number, because the mean of its divisors is an integer number (569078830).

Almost surely, 2^1138157659 is an apocalyptic number.

1138157659 is a deficient number, since it is larger than the sum of its proper divisors (1).

1138157659 is an equidigital number, since it uses as much as digits as its factorization.

1138157659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 46.

The square root of 1138157659 is about 33736.5922849360. The cubic root of 1138157659 is about 1044.0808776884.

The spelling of 1138157659 in words is "one billion, one hundred thirty-eight million, one hundred fifty-seven thousand, six hundred fifty-nine".