2146281 has 8 divisors (see below), whose sum is σ = 2868480. Its totient is φ = 1427472.

The previous prime is 2146253. The next prime is 2146283. The reversal of 2146281 is 1826412.

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

It is not a de Polignac number, because 2146281 - 2⁹ = 2145769 is a prime.

It is a super-2 number, since 2×2146281² = 9213044261922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2146283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2056 + ... + 2918.

It is an arithmetic number, because the mean of its divisors is an integer number (358560).

2^2146281 is an apocalyptic number.

It is an amenable number.

2146281 is a deficient number, since it is larger than the sum of its proper divisors (722199).

2146281 is an equidigital number, since it uses as much as digits as its factorization.

2146281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695.

The product of its digits is 768, while the sum is 24.

The square root of 2146281 is about 1465.0191125033. The cubic root of 2146281 is about 128.9918268964.

The spelling of 2146281 in words is "two million, one hundred forty-six thousand, two hundred eighty-one".