591979159 has 2 divisors, whose sum is σ = 591979160. Its totient is φ = 591979158.

The previous prime is 591979123. The next prime is 591979187. The reversal of 591979159 is 951979195.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 591979159 - 2¹⁵ = 591946391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (591979259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 295989579 + 295989580.

It is an arithmetic number, because the mean of its divisors is an integer number (295989580).

Almost surely, 2^591979159 is an apocalyptic number.

591979159 is a deficient number, since it is larger than the sum of its proper divisors (1).

591979159 is an equidigital number, since it uses as much as digits as its factorization.

591979159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1148175, while the sum is 55.

The square root of 591979159 is about 24330.6218375117. The cubic root of 591979159 is about 839.6574373206.

It can be divided in two parts, 5919 and 79159, that added together give a triangular number (85078 = T₄₁₂).

The spelling of 591979159 in words is "five hundred ninety-one million, nine hundred seventy-nine thousand, one hundred fifty-nine".