855013101 has 4 divisors (see below), whose sum is σ = 1140017472. Its totient is φ = 570008732.

The previous prime is 855013069. The next prime is 855013123. The reversal of 855013101 is 101310558.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 855013101 - 2⁵ = 855013069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855013141) 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, 142502181 + ... + 142502186.

It is an arithmetic number, because the mean of its divisors is an integer number (285004368).

Almost surely, 2^855013101 is an apocalyptic number.

It is an amenable number.

855013101 is a deficient number, since it is larger than the sum of its proper divisors (285004371).

855013101 is a wasteful number, since it uses less digits than its factorization.

855013101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285004370.

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 855013101 is about 29240.6070559419. The cubic root of 855013101 is about 949.1268435159.

Adding to 855013101 its reverse (101310558), we get a palindrome (956323659).

The spelling of 855013101 in words is "eight hundred fifty-five million, thirteen thousand, one hundred one".