159291561139 has 2 divisors, whose sum is σ = 159291561140. Its totient is φ = 159291561138.

The previous prime is 159291561101. The next prime is 159291561179. The reversal of 159291561139 is 931165192951.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159291561139 is a prime.

It is not a weakly prime, because it can be changed into another prime (159291561179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79645780569 + 79645780570.

It is an arithmetic number, because the mean of its divisors is an integer number (79645780570).

Almost surely, 2^159291561139 is an apocalyptic number.

159291561139 is a deficient number, since it is larger than the sum of its proper divisors (1).

159291561139 is an equidigital number, since it uses as much as digits as its factorization.

159291561139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 656100, while the sum is 52.

The spelling of 159291561139 in words is "one hundred fifty-nine billion, two hundred ninety-one million, five hundred sixty-one thousand, one hundred thirty-nine".