872131 has 8 divisors (see below), whose sum is σ = 953120. Its totient is φ = 793152.

The previous prime is 872129. The next prime is 872141. The reversal of 872131 is 131278.

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 872131 - 2¹ = 872129 is a prime.

It is a super-2 number, since 2×872131² = 1521224962322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490 + ... + 1408.

It is an arithmetic number, because the mean of its divisors is an integer number (119140).

2⁸⁷²¹³¹ is an apocalyptic number.

872131 is a deficient number, since it is larger than the sum of its proper divisors (80989).

872131 is a wasteful number, since it uses less digits than its factorization.

872131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005.

The product of its digits is 336, while the sum is 22.

The square root of 872131 is about 933.8795425535. The cubic root of 872131 is about 95.5419075414.

The spelling of 872131 in words is "eight hundred seventy-two thousand, one hundred thirty-one".