159487987 has 2 divisors, whose sum is σ = 159487988. Its totient is φ = 159487986.

The previous prime is 159487927. The next prime is 159488009. The reversal of 159487987 is 789784951.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159487987 is a prime.

It is not a weakly prime, because it can be changed into another prime (159487927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79743993 + 79743994.

It is an arithmetic number, because the mean of its divisors is an integer number (79743994).

Almost surely, 2^159487987 is an apocalyptic number.

159487987 is a deficient number, since it is larger than the sum of its proper divisors (1).

159487987 is an equidigital number, since it uses as much as digits as its factorization.

159487987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5080320, while the sum is 58.

The square root of 159487987 is about 12628.8553321352. The cubic root of 159487987 is about 542.3038140450.

The spelling of 159487987 in words is "one hundred fifty-nine million, four hundred eighty-seven thousand, nine hundred eighty-seven".