2150855 has 12 divisors (see below), whose sum is σ = 3002760. Its totient is φ = 1474704.

The previous prime is 2150849. The next prime is 2150867. The reversal of 2150855 is 5580512.

It is not a de Polignac number, because 2150855 - 2⁴ = 2150839 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4145 + ... + 4634.

It is an arithmetic number, because the mean of its divisors is an integer number (250230).

2^2150855 is an apocalyptic number.

2150855 is a deficient number, since it is larger than the sum of its proper divisors (851905).

2150855 is an equidigital number, since it uses as much as digits as its factorization.

2150855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8798 (or 8791 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 2150855 is about 1466.5793534617. The cubic root of 2150855 is about 129.0833945870.

The spelling of 2150855 in words is "two million, one hundred fifty thousand, eight hundred fifty-five".