159042815 has 32 divisors (see below), whose sum is σ = 208465920. Its totient is φ = 116113536.

The previous prime is 159042811. The next prime is 159042817. The reversal of 159042815 is 518240951.

It is a cyclic number.

It is not a de Polignac number, because 159042815 - 2² = 159042811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159042811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 343274 + ... + 343736.

It is an arithmetic number, because the mean of its divisors is an integer number (6514560).

Almost surely, 2^159042815 is an apocalyptic number.

159042815 is a deficient number, since it is larger than the sum of its proper divisors (49423105).

159042815 is a wasteful number, since it uses less digits than its factorization.

159042815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623.

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 159042815 is about 12611.2178238265. The cubic root of 159042815 is about 541.7987740367.

The spelling of 159042815 in words is "one hundred fifty-nine million, forty-two thousand, eight hundred fifteen".