2146863 has 4 divisors (see below), whose sum is σ = 2862488. Its totient is φ = 1431240.

The previous prime is 2146853. The next prime is 2146897. The reversal of 2146863 is 3686412.

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

It is not a de Polignac number, because 2146863 - 2⁴ = 2146847 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2146863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357808 + ... + 357813.

It is an arithmetic number, because the mean of its divisors is an integer number (715622).

2^2146863 is an apocalyptic number.

2146863 is a deficient number, since it is larger than the sum of its proper divisors (715625).

2146863 is an equidigital number, since it uses as much as digits as its factorization.

2146863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715624.

The product of its digits is 6912, while the sum is 30.

The square root of 2146863 is about 1465.2177312604. The cubic root of 2146863 is about 129.0034852733.

The spelling of 2146863 in words is "two million, one hundred forty-six thousand, eight hundred sixty-three".