2270155 has 4 divisors (see below), whose sum is σ = 2724192. Its totient is φ = 1816120.

The previous prime is 2270153. The next prime is 2270159. The reversal of 2270155 is 5510722.

2270155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2270155 - 2¹ = 2270153 is a prime.

It is a Smith number, since the sum of its digits (22) 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 not an unprimeable number, because it can be changed into a prime (2270153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227011 + ... + 227020.

It is an arithmetic number, because the mean of its divisors is an integer number (681048).

2^2270155 is an apocalyptic number.

2270155 is a deficient number, since it is larger than the sum of its proper divisors (454037).

2270155 is an equidigital number, since it uses as much as digits as its factorization.

2270155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454036.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 2270155 is about 1506.7033550105. The cubic root of 2270155 is about 131.4271741795.

Adding to 2270155 its reverse (5510722), we get a palindrome (7780877).

The spelling of 2270155 in words is "two million, two hundred seventy thousand, one hundred fifty-five".