86145 has 8 divisors (see below), whose sum is σ = 137856. Its totient is φ = 45936.

The previous prime is 86143. The next prime is 86161. The reversal of 86145 is 54168.

86145 = T₃₈ + T₃₉ + ... + T₈₂.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86145 - 2¹ = 86143 is a prime.

It is a super-2 number, since 2×86145² = 14841922050, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (86143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2857 + ... + 2886.

It is an arithmetic number, because the mean of its divisors is an integer number (17232).

2⁸⁶¹⁴⁵ is an apocalyptic number.

It is an amenable number.

86145 is a deficient number, since it is larger than the sum of its proper divisors (51711).

86145 is a wasteful number, since it uses less digits than its factorization.

86145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5751.

The product of its digits is 960, while the sum is 24.

The square root of 86145 is about 293.5046848008. The cubic root of 86145 is about 44.1648430876.

It can be divided in two parts, 86 and 145, that added together give a triangular number (231 = T₂₁).

The spelling of 86145 in words is "eighty-six thousand, one hundred forty-five".