42107126 has 4 divisors (see below), whose sum is σ = 63160692. Its totient is φ = 21053562.

The previous prime is 42107111. The next prime is 42107129. The reversal of 42107126 is 62170124.

42107126 = 3243² + 3244² + ... + 3246².

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42107129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10526780 + ... + 10526783.

It is an arithmetic number, because the mean of its divisors is an integer number (15790173).

Almost surely, 2^42107126 is an apocalyptic number.

42107126 is a deficient number, since it is larger than the sum of its proper divisors (21053566).

42107126 is a wasteful number, since it uses less digits than its factorization.

42107126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21053565.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 42107126 is about 6489.0003852674. Note that the first 3 decimals coincide. The cubic root of 42107126 is about 347.8979475716.

The spelling of 42107126 in words is "forty-two million, one hundred seven thousand, one hundred twenty-six".