126188742 has 8 divisors (see below), whose sum is σ = 252377496. Its totient is φ = 42062912.

The previous prime is 126188731. The next prime is 126188753. The reversal of 126188742 is 247881621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (126188731) and next prime (126188753).

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

126188742 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 126188742.

It is a congruent number.

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, 10515723 + ... + 10515734.

It is an arithmetic number, because the mean of its divisors is an integer number (31547187).

Almost surely, 2^126188742 is an apocalyptic number.

126188742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126188742 is a wasteful number, since it uses less digits than its factorization.

126188742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21031462.

The product of its digits is 43008, while the sum is 39.

The square root of 126188742 is about 11233.3762511544. The cubic root of 126188742 is about 501.5799913291.

The spelling of 126188742 in words is "one hundred twenty-six million, one hundred eighty-eight thousand, seven hundred forty-two".