188126642 has 8 divisors (see below), whose sum is σ = 307843632. Its totient is φ = 85512100.

The previous prime is 188126599. The next prime is 188126681. The reversal of 188126642 is 246621881.

It is a happy number.

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 = 188126596 and 188126605.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4275584 + ... + 4275627.

It is an arithmetic number, because the mean of its divisors is an integer number (38480454).

Almost surely, 2^188126642 is an apocalyptic number.

188126642 is a deficient number, since it is larger than the sum of its proper divisors (119716990).

188126642 is a wasteful number, since it uses less digits than its factorization.

188126642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8551224.

The product of its digits is 36864, while the sum is 38.

The square root of 188126642 is about 13715.9265818974. The cubic root of 188126642 is about 572.9940353922.

The spelling of 188126642 in words is "one hundred eighty-eight million, one hundred twenty-six thousand, six hundred forty-two".