155987159 has 8 divisors (see below), whose sum is σ = 158195520. Its totient is φ = 153784800.

The previous prime is 155987149. The next prime is 155987177. The reversal of 155987159 is 951789551.

155987159 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 155987159 - 2¹² = 155983063 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 (155987119) 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, 82889 + ... + 84749.

It is an arithmetic number, because the mean of its divisors is an integer number (19774440).

Almost surely, 2^155987159 is an apocalyptic number.

155987159 is a deficient number, since it is larger than the sum of its proper divisors (2208361).

155987159 is a wasteful number, since it uses less digits than its factorization.

155987159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001.

The product of its digits is 567000, while the sum is 50.

The square root of 155987159 is about 12489.4819348122. The cubic root of 155987159 is about 538.3064903263.

The spelling of 155987159 in words is "one hundred fifty-five million, nine hundred eighty-seven thousand, one hundred fifty-nine".