2855121 has 8 divisors (see below), whose sum is σ = 3826944. Its totient is φ = 1893360.

The previous prime is 2855119. The next prime is 2855129. The reversal of 2855121 is 1215582.

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

It is not a de Polignac number, because 2855121 - 2¹ = 2855119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2855091 and 2855100.

It is not an unprimeable number, because it can be changed into a prime (2855129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1825 + ... + 3006.

It is an arithmetic number, because the mean of its divisors is an integer number (478368).

2^2855121 is an apocalyptic number.

It is an amenable number.

2855121 is a deficient number, since it is larger than the sum of its proper divisors (971823).

2855121 is a wasteful number, since it uses less digits than its factorization.

2855121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5031.

The product of its digits is 800, while the sum is 24.

The square root of 2855121 is about 1689.7103302046. The cubic root of 2855121 is about 141.8648618449.

The spelling of 2855121 in words is "two million, eight hundred fifty-five thousand, one hundred twenty-one".