511640159 has 2 divisors, whose sum is σ = 511640160. Its totient is φ = 511640158.

The previous prime is 511640147. The next prime is 511640191. The reversal of 511640159 is 951046115.

It is an a-pointer prime, because the next prime (511640191) can be obtained adding 511640159 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-511640159 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (511640119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255820079 + 255820080.

It is an arithmetic number, because the mean of its divisors is an integer number (255820080).

Almost surely, 2^511640159 is an apocalyptic number.

511640159 is a deficient number, since it is larger than the sum of its proper divisors (1).

511640159 is an equidigital number, since it uses as much as digits as its factorization.

511640159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 511640159 is about 22619.4641625305. The cubic root of 511640159 is about 799.8125388888.

The spelling of 511640159 in words is "five hundred eleven million, six hundred forty thousand, one hundred fifty-nine".