126005422 has 4 divisors (see below), whose sum is σ = 189008136. Its totient is φ = 63002710.

The previous prime is 126005401. The next prime is 126005459. The reversal of 126005422 is 224500621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 224500621 = 2711 ⋅82811.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 126005393 and 126005402.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 31501354 + ... + 31501357.

It is an arithmetic number, because the mean of its divisors is an integer number (47252034).

Almost surely, 2^126005422 is an apocalyptic number.

126005422 is a deficient number, since it is larger than the sum of its proper divisors (63002714).

126005422 is an equidigital number, since it uses as much as digits as its factorization.

126005422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63002713.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 126005422 is about 11225.2136727993. The cubic root of 126005422 is about 501.3369844254.

The spelling of 126005422 in words is "one hundred twenty-six million, five thousand, four hundred twenty-two".