2144261 has 16 divisors (see below), whose sum is σ = 2670336. Its totient is φ = 1679616.

The previous prime is 2144251. The next prime is 2144269. The reversal of 2144261 is 1624412.

It is a cyclic number.

It is not a de Polignac number, because 2144261 - 2¹⁸ = 1882117 is a prime.

It is a super-2 number, since 2×2144261² = 9195710472242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4160 + ... + 4646.

It is an arithmetic number, because the mean of its divisors is an integer number (166896).

2^2144261 is an apocalyptic number.

It is an amenable number.

2144261 is a deficient number, since it is larger than the sum of its proper divisors (526075).

2144261 is a wasteful number, since it uses less digits than its factorization.

2144261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548.

The product of its digits is 384, while the sum is 20.

The square root of 2144261 is about 1464.3295394139. The cubic root of 2144261 is about 128.9513467547.

Adding to 2144261 its reverse (1624412), we get a palindrome (3768673).

The spelling of 2144261 in words is "two million, one hundred forty-four thousand, two hundred sixty-one".