86005131 has 8 divisors (see below), whose sum is σ = 117772944. Its totient is φ = 55787040.

The previous prime is 86005121. The next prime is 86005141. The reversal of 86005131 is 13150068.

It is an interprime number because it is at equal distance from previous prime (86005121) and next prime (86005141).

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

It is not a de Polignac number, because 86005131 - 2⁵ = 86005099 is a prime.

It is a super-2 number, since 2×86005131² = 14793765116654322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86005111) 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, 387300 + ... + 387521.

It is an arithmetic number, because the mean of its divisors is an integer number (14721618).

Almost surely, 2^86005131 is an apocalyptic number.

86005131 is a deficient number, since it is larger than the sum of its proper divisors (31767813).

86005131 is a wasteful number, since it uses less digits than its factorization.

86005131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774861.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 86005131 is about 9273.8951363491. The cubic root of 86005131 is about 441.4092744648.

Adding to 86005131 its reverse (13150068), we get a palindrome (99155199).

It can be divided in two parts, 8600 and 5131, that added together give a palindrome (13731).

The spelling of 86005131 in words is "eighty-six million, five thousand, one hundred thirty-one".