872142108 has 12 divisors (see below), whose sum is σ = 2034998280. Its totient is φ = 290714032.

The previous prime is 872142107. The next prime is 872142121. The reversal of 872142108 is 801241278.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872142107) 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 3 ways as a sum of consecutive naturals, for example, 36339243 + ... + 36339266.

It is an arithmetic number, because the mean of its divisors is an integer number (169583190).

Almost surely, 2^872142108 is an apocalyptic number.

It is an amenable number.

872142108 is an abundant number, since it is smaller than the sum of its proper divisors (1162856172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

872142108 is a wasteful number, since it uses less digits than its factorization.

872142108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72678516 (or 72678514 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 872142108 is about 29532.0522145008. The cubic root of 872142108 is about 955.4231316662.

The spelling of 872142108 in words is "eight hundred seventy-two million, one hundred forty-two thousand, one hundred eight".