126540103642 has 8 divisors (see below), whose sum is σ = 189814988916. Its totient is φ = 63268440672.

The previous prime is 126540103639. The next prime is 126540103649. The reversal of 126540103642 is 246301045621.

126540103642 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 126267226281 + 272877361 = 355341^2 + 16519^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 126540103598 and 126540103607.

It is not an unprimeable number, because it can be changed into a prime (126540103649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 704883 + ... + 865990.

Almost surely, 2^126540103642 is an apocalyptic number.

126540103642 is a deficient number, since it is larger than the sum of its proper divisors (63274885274).

126540103642 is a wasteful number, since it uses less digits than its factorization.

126540103642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611152.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 126540103642 in words is "one hundred twenty-six billion, five hundred forty million, one hundred three thousand, six hundred forty-two".