858485101 has 4 divisors (see below), whose sum is σ = 879423804. Its totient is φ = 837546400.

The previous prime is 858485093. The next prime is 858485119. The reversal of 858485101 is 101584858.

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 12257001 + 846228100 = 3501^2 + 29090^2 .

It is a cyclic number.

It is not a de Polignac number, because 858485101 - 2³ = 858485093 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (858485141) 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 3 ways as a sum of consecutive naturals, for example, 10469290 + ... + 10469371.

It is an arithmetic number, because the mean of its divisors is an integer number (219855951).

Almost surely, 2^858485101 is an apocalyptic number.

It is an amenable number.

858485101 is a deficient number, since it is larger than the sum of its proper divisors (20938703).

858485101 is a wasteful number, since it uses less digits than its factorization.

858485101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20938702.

The product of its (nonzero) digits is 51200, while the sum is 40.

The square root of 858485101 is about 29299.9163991981. The cubic root of 858485101 is about 950.4098327745.

The spelling of 858485101 in words is "eight hundred fifty-eight million, four hundred eighty-five thousand, one hundred one".