101284685 has 4 divisors (see below), whose sum is σ = 121541628. Its totient is φ = 81027744.

The previous prime is 101284679. The next prime is 101284693. The reversal of 101284685 is 586482101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 586482101 = 19 ⋅30867479.

It can be written as a sum of positive squares in 2 ways, for example, as 20967241 + 80317444 = 4579^2 + 8962^2 .

It is a cyclic number.

It is not a de Polignac number, because 101284685 - 2⁴ = 101284669 is a prime.

It is a Duffinian number.

It is a Curzon 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, 10128464 + ... + 10128473.

It is an arithmetic number, because the mean of its divisors is an integer number (30385407).

Almost surely, 2^101284685 is an apocalyptic number.

It is an amenable number.

101284685 is a deficient number, since it is larger than the sum of its proper divisors (20256943).

101284685 is an equidigital number, since it uses as much as digits as its factorization.

101284685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20256942.

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 101284685 is about 10064.0292626761. The cubic root of 101284685 is about 466.1380917228.

The spelling of 101284685 in words is "one hundred one million, two hundred eighty-four thousand, six hundred eighty-five".