126192842 has 4 divisors (see below), whose sum is σ = 189289266. Its totient is φ = 63096420.

The previous prime is 126192827. The next prime is 126192877. The reversal of 126192842 is 248291621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 248291621 = 463 ⋅536267.

It can be written as a sum of positive squares in only one way, i.e., 100982401 + 25210441 = 10049^2 + 5021^2 .

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 as a sum of consecutive naturals, namely, 31548209 + ... + 31548212.

Almost surely, 2^126192842 is an apocalyptic number.

126192842 is a deficient number, since it is larger than the sum of its proper divisors (63096424).

126192842 is an equidigital number, since it uses as much as digits as its factorization.

126192842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63096423.

The product of its digits is 13824, while the sum is 35.

The square root of 126192842 is about 11233.5587415565. The cubic root of 126192842 is about 501.5854235509.

The spelling of 126192842 in words is "one hundred twenty-six million, one hundred ninety-two thousand, eight hundred forty-two".