86081523 has 16 divisors (see below), whose sum is σ = 132575616. Its totient is φ = 49101440.

The previous prime is 86081519. The next prime is 86081543. The reversal of 86081523 is 32518068.

It is a happy number.

It is not a de Polignac number, because 86081523 - 2² = 86081519 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (86081543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76161 + ... + 77282.

It is an arithmetic number, because the mean of its divisors is an integer number (8285976).

Almost surely, 2^86081523 is an apocalyptic number.

86081523 is a deficient number, since it is larger than the sum of its proper divisors (46494093).

86081523 is a wasteful number, since it uses less digits than its factorization.

86081523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153474.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 86081523 is about 9278.0128799221. The cubic root of 86081523 is about 441.5399261989.

The spelling of 86081523 in words is "eighty-six million, eighty-one thousand, five hundred twenty-three".