10642543 has 4 divisors (see below), whose sum is σ = 10890088. Its totient is φ = 10395000.

The previous prime is 10642529. The next prime is 10642547. The reversal of 10642543 is 34524601.

10642543 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 is a cyclic number.

It is not a de Polignac number, because 10642543 - 2¹⁷ = 10511471 is a prime.

It is a super-2 number, since 2×10642543² = 226527443013698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10642547) 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, 123708 + ... + 123793.

It is an arithmetic number, because the mean of its divisors is an integer number (2722522).

Almost surely, 2^10642543 is an apocalyptic number.

10642543 is a deficient number, since it is larger than the sum of its proper divisors (247545).

10642543 is an equidigital number, since it uses as much as digits as its factorization.

10642543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247544.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 10642543 is about 3262.2910661068. The cubic root of 10642543 is about 219.9624109333.

The spelling of 10642543 in words is "ten million, six hundred forty-two thousand, five hundred forty-three".