2146243 has 8 divisors (see below), whose sum is σ = 2381760. Its totient is φ = 1917480.

The previous prime is 2146231. The next prime is 2146247. The reversal of 2146243 is 3426412.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2146243 is a prime.

It is a Duffinian number.

2146243 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1005 + ... + 2302.

It is an arithmetic number, because the mean of its divisors is an integer number (297720).

2^2146243 is an apocalyptic number.

2146243 is a deficient number, since it is larger than the sum of its proper divisors (235517).

2146243 is a wasteful number, since it uses less digits than its factorization.

2146243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377.

The product of its digits is 1152, while the sum is 22.

The square root of 2146243 is about 1465.0061433318. The cubic root of 2146243 is about 128.9910656232.

It can be divided in two parts, 21 and 46243, that added together give a palindrome (46264).

The spelling of 2146243 in words is "two million, one hundred forty-six thousand, two hundred forty-three".