42171126 has 16 divisors (see below), whose sum is σ = 86137344. Its totient is φ = 13757864.

The previous prime is 42171113. The next prime is 42171131. The reversal of 42171126 is 62117124.

It is a junction number, because it is equal to n+sod(n) for n = 42171096 and 42171105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74490 + ... + 75053.

It is an arithmetic number, because the mean of its divisors is an integer number (5383584).

Almost surely, 2^42171126 is an apocalyptic number.

42171126 is an abundant number, since it is smaller than the sum of its proper divisors (43966218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42171126 is a wasteful number, since it uses less digits than its factorization.

42171126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149595.

The product of its digits is 672, while the sum is 24.

The square root of 42171126 is about 6493.9299349469. The cubic root of 42171126 is about 348.0741188408.

The spelling of 42171126 in words is "forty-two million, one hundred seventy-one thousand, one hundred twenty-six".