2143453 has 4 divisors (see below), whose sum is σ = 2308348. Its totient is φ = 1978560.

The previous prime is 2143451. The next prime is 2143459. The reversal of 2143453 is 3543412.

2143453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 191844 + 1951609 = 438^2 + 1397^2 .

It is a cyclic number.

It is not a de Polignac number, because 2143453 - 2¹ = 2143451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143451) 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 3 ways as a sum of consecutive naturals, for example, 82428 + ... + 82453.

It is an arithmetic number, because the mean of its divisors is an integer number (577087).

2^2143453 is an apocalyptic number.

It is an amenable number.

2143453 is a deficient number, since it is larger than the sum of its proper divisors (164895).

2143453 is a wasteful number, since it uses less digits than its factorization.

2143453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164894.

The product of its digits is 1440, while the sum is 22.

The square root of 2143453 is about 1464.0536192367. The cubic root of 2143453 is about 128.9351475796.

Adding to 2143453 its reverse (3543412), we get a palindrome (5686865).

The spelling of 2143453 in words is "two million, one hundred forty-three thousand, four hundred fifty-three".