842372159 has 4 divisors (see below), whose sum is σ = 850244904. Its totient is φ = 834499416.

The previous prime is 842372147. The next prime is 842372191. The reversal of 842372159 is 951273248.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 842372159 - 2¹² = 842368063 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 (842372359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3936212 + ... + 3936425.

It is an arithmetic number, because the mean of its divisors is an integer number (212561226).

Almost surely, 2^842372159 is an apocalyptic number.

842372159 is a deficient number, since it is larger than the sum of its proper divisors (7872745).

842372159 is a wasteful number, since it uses less digits than its factorization.

842372159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7872744.

The product of its digits is 120960, while the sum is 41.

The square root of 842372159 is about 29023.6482717111. The cubic root of 842372159 is about 944.4261454412.

The spelling of 842372159 in words is "eight hundred forty-two million, three hundred seventy-two thousand, one hundred fifty-nine".