101986085 has 4 divisors (see below), whose sum is σ = 122383308. Its totient is φ = 81588864.

The previous prime is 101986051. The next prime is 101986123. The reversal of 101986085 is 580689101.

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 60949249 + 41036836 = 7807^2 + 6406^2 .

It is a cyclic number.

It is not a de Polignac number, because 101986085 - 2¹² = 101981989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10198604 + ... + 10198613.

It is an arithmetic number, because the mean of its divisors is an integer number (30595827).

Almost surely, 2^101986085 is an apocalyptic number.

It is an amenable number.

101986085 is a deficient number, since it is larger than the sum of its proper divisors (20397223).

101986085 is an equidigital number, since it uses as much as digits as its factorization.

101986085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20397222.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 101986085 is about 10098.8160197124. The cubic root of 101986085 is about 467.2116249888.

The spelling of 101986085 in words is "one hundred one million, nine hundred eighty-six thousand, eighty-five".