159189551 has 2 divisors, whose sum is σ = 159189552. Its totient is φ = 159189550.

The previous prime is 159189529. The next prime is 159189599. The reversal of 159189551 is 155981951.

It is a weak prime.

It is an emirp because it is prime and its reverse (155981951) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159189551 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 (159180551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79594775 + 79594776.

It is an arithmetic number, because the mean of its divisors is an integer number (79594776).

Almost surely, 2^159189551 is an apocalyptic number.

159189551 is a deficient number, since it is larger than the sum of its proper divisors (1).

159189551 is an equidigital number, since it uses as much as digits as its factorization.

159189551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81000, while the sum is 44.

The square root of 159189551 is about 12617.0341602137. The cubic root of 159189551 is about 541.9653475211.

The spelling of 159189551 in words is "one hundred fifty-nine million, one hundred eighty-nine thousand, five hundred fifty-one".