42512126 has 8 divisors (see below), whose sum is σ = 63798840. Its totient is φ = 21245848.

The previous prime is 42512123. The next prime is 42512131. The reversal of 42512126 is 62121524.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42512123) 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, 2165 + ... + 9471.

It is an arithmetic number, because the mean of its divisors is an integer number (7974855).

Almost surely, 2^42512126 is an apocalyptic number.

42512126 is a deficient number, since it is larger than the sum of its proper divisors (21286714).

42512126 is a wasteful number, since it uses less digits than its factorization.

42512126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10218.

The product of its digits is 960, while the sum is 23.

The square root of 42512126 is about 6520.1323606197. The cubic root of 42512126 is about 349.0097889171.

It can be divided in two parts, 4251 and 2126, that multiplied together give a triangular number (9037626 = T₄₂₅₁).

The spelling of 42512126 in words is "forty-two million, five hundred twelve thousand, one hundred twenty-six".