126295979 has 4 divisors (see below), whose sum is σ = 128678976. Its totient is φ = 123912984.

The previous prime is 126295973. The next prime is 126295991. The reversal of 126295979 is 979592621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126295979 - 2⁴ = 126295963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126295973) 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 in 3 ways as a sum of consecutive naturals, for example, 1191419 + ... + 1191524.

It is an arithmetic number, because the mean of its divisors is an integer number (32169744).

Almost surely, 2^126295979 is an apocalyptic number.

126295979 is a deficient number, since it is larger than the sum of its proper divisors (2382997).

126295979 is an equidigital number, since it uses as much as digits as its factorization.

126295979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382996.

The product of its digits is 612360, while the sum is 50.

The square root of 126295979 is about 11238.1483795152. The cubic root of 126295979 is about 501.7220343864.

The spelling of 126295979 in words is "one hundred twenty-six million, two hundred ninety-five thousand, nine hundred seventy-nine".