42373543 has 4 divisors (see below), whose sum is σ = 42441328. Its totient is φ = 42305760.

The previous prime is 42373517. The next prime is 42373549. The reversal of 42373543 is 34537324.

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 42373543 - 2⁵ = 42373511 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 (42373549) 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, 32946 + ... + 34207.

It is an arithmetic number, because the mean of its divisors is an integer number (10610332).

Almost surely, 2^42373543 is an apocalyptic number.

42373543 is a deficient number, since it is larger than the sum of its proper divisors (67785).

42373543 is an equidigital number, since it uses as much as digits as its factorization.

42373543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67784.

The product of its digits is 30240, while the sum is 31.

The square root of 42373543 is about 6509.4963706880. The cubic root of 42373543 is about 348.6301366495.

The spelling of 42373543 in words is "forty-two million, three hundred seventy-three thousand, five hundred forty-three".