2651243 has 12 divisors (see below), whose sum is σ = 3138192. Its totient is φ = 2232720.

The previous prime is 2651239. The next prime is 2651273. The reversal of 2651243 is 3421562.

2651243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2651243 - 2² = 2651239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2651273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2546 + ... + 3432.

It is an arithmetic number, because the mean of its divisors is an integer number (261516).

2^2651243 is an apocalyptic number.

2651243 is a deficient number, since it is larger than the sum of its proper divisors (486949).

2651243 is an equidigital number, since it uses as much as digits as its factorization.

2651243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962 (or 955 counting only the distinct ones).

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

The square root of 2651243 is about 1628.2637992660. The cubic root of 2651243 is about 138.4043834301.

The spelling of 2651243 in words is "two million, six hundred fifty-one thousand, two hundred forty-three".