2152643 has 12 divisors (see below), whose sum is σ = 2331720. Its totient is φ = 1986336.

The previous prime is 2152637. The next prime is 2152663. The reversal of 2152643 is 3462512.

It is not a de Polignac number, because 2152643 - 2¹⁰ = 2151619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2152663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24143 + ... + 24231.

It is an arithmetic number, because the mean of its divisors is an integer number (194310).

2^2152643 is an apocalyptic number.

2152643 is a deficient number, since it is larger than the sum of its proper divisors (179077).

2152643 is an equidigital number, since it uses as much as digits as its factorization.

2152643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 175 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 2152643 is about 1467.1888085724. The cubic root of 2152643 is about 129.1191535734.

The spelling of 2152643 in words is "two million, one hundred fifty-two thousand, six hundred forty-three".