159113491 has 2 divisors, whose sum is σ = 159113492. Its totient is φ = 159113490.

The previous prime is 159113443. The next prime is 159113503. The reversal of 159113491 is 194311951.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 159113491 - 2⁷ = 159113363 is a prime.

It is not a weakly prime, because it can be changed into another prime (159113411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79556745 + 79556746.

It is an arithmetic number, because the mean of its divisors is an integer number (79556746).

Almost surely, 2^159113491 is an apocalyptic number.

159113491 is a deficient number, since it is larger than the sum of its proper divisors (1).

159113491 is an equidigital number, since it uses as much as digits as its factorization.

159113491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 34.

The square root of 159113491 is about 12614.0196210407. The cubic root of 159113491 is about 541.8790176269.

The spelling of 159113491 in words is "one hundred fifty-nine million, one hundred thirteen thousand, four hundred ninety-one".