870181 has 12 divisors (see below), whose sum is σ = 995520. Its totient is φ = 758160.

The previous prime is 870173. The next prime is 870197. The reversal of 870181 is 181078.

870181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 870181 - 2³ = 870173 is a prime.

It is a super-2 number, since 2×870181² = 1514429945522, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3076 + ... + 3346.

It is an arithmetic number, because the mean of its divisors is an integer number (82960).

2⁸⁷⁰¹⁸¹ is an apocalyptic number.

It is an amenable number.

870181 is a deficient number, since it is larger than the sum of its proper divisors (125339).

870181 is a wasteful number, since it uses less digits than its factorization.

870181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 870181 is about 932.8349264473. The cubic root of 870181 is about 95.4706469368.

The spelling of 870181 in words is "eight hundred seventy thousand, one hundred eighty-one".