126019642 has 16 divisors (see below), whose sum is σ = 217685952. Its totient is φ = 53595360.

The previous prime is 126019613. The next prime is 126019667. The reversal of 126019642 is 246910621.

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, 32523 + ... + 36190.

It is an arithmetic number, because the mean of its divisors is an integer number (13605372).

Almost surely, 2^126019642 is an apocalyptic number.

126019642 is a deficient number, since it is larger than the sum of its proper divisors (91666310).

126019642 is a wasteful number, since it uses less digits than its factorization.

126019642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68853.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 126019642 is about 11225.8470504457. The cubic root of 126019642 is about 501.3558427244.

It can be divided in two parts, 1260 and 19642, that added together give a palindrome (20902).

The spelling of 126019642 in words is "one hundred twenty-six million, nineteen thousand, six hundred forty-two".