126299126 has 4 divisors (see below), whose sum is σ = 189448692. Its totient is φ = 63149562.

The previous prime is 126299123. The next prime is 126299149. The reversal of 126299126 is 621992621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 621992621 = 83 ⋅7493887.

It is a self number, because there is not a number n which added to its sum of digits gives 126299126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126299123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31574780 + ... + 31574783.

It is an arithmetic number, because the mean of its divisors is an integer number (47362173).

Almost surely, 2^126299126 is an apocalyptic number.

126299126 is a deficient number, since it is larger than the sum of its proper divisors (63149566).

126299126 is an equidigital number, since it uses as much as digits as its factorization.

126299126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63149565.

The product of its digits is 23328, while the sum is 38.

The square root of 126299126 is about 11238.2883928114. The cubic root of 126299126 is about 501.7262015978.

The spelling of 126299126 in words is "one hundred twenty-six million, two hundred ninety-nine thousand, one hundred twenty-six".