86510101 has 4 divisors (see below), whose sum is σ = 86567500. Its totient is φ = 86452704.

The previous prime is 86510089. The next prime is 86510111. The reversal of 86510101 is 10101568.

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 53436100 + 33074001 = 7310^2 + 5751^2 .

It is a cyclic number.

It is not a de Polignac number, because 86510101 - 2⁵ = 86510069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86510111) 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, 26376 + ... + 29473.

It is an arithmetic number, because the mean of its divisors is an integer number (21641875).

Almost surely, 2^86510101 is an apocalyptic number.

It is an amenable number.

86510101 is a deficient number, since it is larger than the sum of its proper divisors (57399).

86510101 is a wasteful number, since it uses less digits than its factorization.

86510101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57398.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 86510101 is about 9301.0806361412. The cubic root of 86510101 is about 442.2714851052.

Adding to 86510101 its reverse (10101568), we get a palindrome (96611669).

The spelling of 86510101 in words is "eighty-six million, five hundred ten thousand, one hundred one".