159987542 has 16 divisors (see below), whose sum is σ = 281936592. Its totient is φ = 67127520.

The previous prime is 159987539. The next prime is 159987551. The reversal of 159987542 is 245789951.

159987542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279413 + ... + 279984.

It is an arithmetic number, because the mean of its divisors is an integer number (17621037).

Almost surely, 2^159987542 is an apocalyptic number.

159987542 is a deficient number, since it is larger than the sum of its proper divisors (121949050).

159987542 is a wasteful number, since it uses less digits than its factorization.

159987542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559423.

The product of its digits is 907200, while the sum is 50.

The square root of 159987542 is about 12648.6181853988. The cubic root of 159987542 is about 542.8694328638.

The spelling of 159987542 in words is "one hundred fifty-nine million, nine hundred eighty-seven thousand, five hundred forty-two".