2144155 has 8 divisors (see below), whose sum is σ = 2770992. Its totient is φ = 1583328.

The previous prime is 2144143. The next prime is 2144161. The reversal of 2144155 is 5514412.

2144155 is nontrivially palindromic in base 9.

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

It is a cyclic number.

It is not a de Polignac number, because 2144155 - 2⁵ = 2144123 is a prime.

It is a Duffinian number.

2144155 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16429 + ... + 16558.

It is an arithmetic number, because the mean of its divisors is an integer number (346374).

2^2144155 is an apocalyptic number.

2144155 is a deficient number, since it is larger than the sum of its proper divisors (626837).

2144155 is a wasteful number, since it uses less digits than its factorization.

2144155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33005.

The product of its digits is 800, while the sum is 22.

The square root of 2144155 is about 1464.2933449279. The cubic root of 2144155 is about 128.9492218473.

Adding to 2144155 its reverse (5514412), we get a palindrome (7658567).

The spelling of 2144155 in words is "two million, one hundred forty-four thousand, one hundred fifty-five".