86067181 has 4 divisors (see below), whose sum is σ = 86207292. Its totient is φ = 85927072.

The previous prime is 86067167. The next prime is 86067187. The reversal of 86067181 is 18176068.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22610025 + 63457156 = 4755^2 + 7966^2 .

It is a cyclic number.

It is not a de Polignac number, because 86067181 - 2⁷ = 86067053 is a prime.

It is a super-3 number, since 3×86067181³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86067181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86067187) 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, 69130 + ... + 70363.

It is an arithmetic number, because the mean of its divisors is an integer number (21551823).

Almost surely, 2^86067181 is an apocalyptic number.

It is an amenable number.

86067181 is a deficient number, since it is larger than the sum of its proper divisors (140111).

86067181 is a wasteful number, since it uses less digits than its factorization.

86067181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140110.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 86067181 is about 9277.2399451561. The cubic root of 86067181 is about 441.5154032539.

The spelling of 86067181 in words is "eighty-six million, sixty-seven thousand, one hundred eighty-one".