42123759 has 4 divisors (see below), whose sum is σ = 56165016. Its totient is φ = 28082504.

The previous prime is 42123751. The next prime is 42123793. The reversal of 42123759 is 95732124.

42123759 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 42123759 - 2³ = 42123751 is a prime.

It is a super-2 number, since 2×42123759² = 3548822144580162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42123751) 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, 7020624 + ... + 7020629.

It is an arithmetic number, because the mean of its divisors is an integer number (14041254).

Almost surely, 2^42123759 is an apocalyptic number.

42123759 is a deficient number, since it is larger than the sum of its proper divisors (14041257).

42123759 is a wasteful number, since it uses less digits than its factorization.

42123759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14041256.

The product of its digits is 15120, while the sum is 33.

The square root of 42123759 is about 6490.2818891016. The cubic root of 42123759 is about 347.9437499915.

The spelling of 42123759 in words is "forty-two million, one hundred twenty-three thousand, seven hundred fifty-nine".