42085126 has 4 divisors (see below), whose sum is σ = 63127692. Its totient is φ = 21042562.

The previous prime is 42085123. The next prime is 42085129. The reversal of 42085126 is 62158024.

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

It is an interprime number because it is at equal distance from previous prime (42085123) and next prime (42085129).

It is a junction number, because it is equal to n+sod(n) for n = 42085094 and 42085103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42085123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10521280 + ... + 10521283.

It is an arithmetic number, because the mean of its divisors is an integer number (15781923).

Almost surely, 2^42085126 is an apocalyptic number.

42085126 is a deficient number, since it is larger than the sum of its proper divisors (21042566).

42085126 is a wasteful number, since it uses less digits than its factorization.

42085126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21042565.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 42085126 is about 6487.3049874351. The cubic root of 42085126 is about 347.8373474710.

The spelling of 42085126 in words is "forty-two million, eighty-five thousand, one hundred twenty-six".