42125743 has 4 divisors (see below), whose sum is σ = 45955368. Its totient is φ = 38296120.

The previous prime is 42125729. The next prime is 42125761. The reversal of 42125743 is 34752124.

42125743 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 42125743 - 2¹⁷ = 41994671 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 (42125543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1914796 + ... + 1914817.

It is an arithmetic number, because the mean of its divisors is an integer number (11488842).

Almost surely, 2^42125743 is an apocalyptic number.

42125743 is a deficient number, since it is larger than the sum of its proper divisors (3829625).

42125743 is a wasteful number, since it uses less digits than its factorization.

42125743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3829624.

The product of its digits is 6720, while the sum is 28.

The square root of 42125743 is about 6490.4347312025. The cubic root of 42125743 is about 347.9492125426.

Adding to 42125743 its reverse (34752124), we get a palindrome (76877867).

The spelling of 42125743 in words is "forty-two million, one hundred twenty-five thousand, seven hundred forty-three".