106805285 has 8 divisors (see below), whose sum is σ = 129342840. Its totient is φ = 84659904.

The previous prime is 106805243. The next prime is 106805297. The reversal of 106805285 is 582508601.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8755681 + 98049604 = 2959^2 + 9902^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 106805285 - 2⁶ = 106805221 is a prime.

It is a super-2 number, since 2×106805285² = 22814737807862450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97442 + ... + 98531.

It is an arithmetic number, because the mean of its divisors is an integer number (16167855).

Almost surely, 2^106805285 is an apocalyptic number.

It is an amenable number.

106805285 is a deficient number, since it is larger than the sum of its proper divisors (22537555).

106805285 is a wasteful number, since it uses less digits than its factorization.

106805285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196087.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 106805285 is about 10334.6642422480. The cubic root of 106805285 is about 474.4577894299.

The spelling of 106805285 in words is "one hundred six million, eight hundred five thousand, two hundred eighty-five".