126126542 has 16 divisors (see below), whose sum is σ = 192931200. Its totient is φ = 61822200.

The previous prime is 126126529. The next prime is 126126613. The reversal of 126126542 is 245621621.

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 in 7 ways as a sum of consecutive naturals, for example, 48167 + ... + 50717.

It is an arithmetic number, because the mean of its divisors is an integer number (12058200).

Almost surely, 2^126126542 is an apocalyptic number.

126126542 is a deficient number, since it is larger than the sum of its proper divisors (66804658).

126126542 is a wasteful number, since it uses less digits than its factorization.

126126542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3031.

The product of its digits is 5760, while the sum is 29.

The square root of 126126542 is about 11230.6073744923. The cubic root of 126126542 is about 501.4975661133.

The spelling of 126126542 in words is "one hundred twenty-six million, one hundred twenty-six thousand, five hundred forty-two".