159987541 has 8 divisors (see below), whose sum is σ = 183491264. Its totient is φ = 136645920.

The previous prime is 159987539. The next prime is 159987551. The reversal of 159987541 is 145789951.

159987541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 159987541 - 2¹ = 159987539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159987551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38400 + ... + 42361.

It is an arithmetic number, because the mean of its divisors is an integer number (22936408).

Almost surely, 2^159987541 is an apocalyptic number.

It is an amenable number.

159987541 is a deficient number, since it is larger than the sum of its proper divisors (23503723).

159987541 is an equidigital number, since it uses as much as digits as its factorization.

159987541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81051.

The product of its digits is 453600, while the sum is 49.

The square root of 159987541 is about 12648.6181458687. The cubic root of 159987541 is about 542.8694317328.

The spelling of 159987541 in words is "one hundred fifty-nine million, nine hundred eighty-seven thousand, five hundred forty-one".