875218081 has 4 divisors (see below), whose sum is σ = 876078000. Its totient is φ = 874358164.

The previous prime is 875218049. The next prime is 875218093. The reversal of 875218081 is 180812578.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 875218081 - 2⁵ = 875218049 is a prime.

It is a super-2 number, since 2×875218081² = 1532013378618645122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (875218031) 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, 428431 + ... + 430468.

It is an arithmetic number, because the mean of its divisors is an integer number (219019500).

Almost surely, 2^875218081 is an apocalyptic number.

It is an amenable number.

875218081 is a deficient number, since it is larger than the sum of its proper divisors (859919).

875218081 is a wasteful number, since it uses less digits than its factorization.

875218081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859918.

The product of its (nonzero) digits is 35840, while the sum is 40.

The square root of 875218081 is about 29584.0849275417. The cubic root of 875218081 is about 956.5450464894.

The spelling of 875218081 in words is "eight hundred seventy-five million, two hundred eighteen thousand, eighty-one".