126147979 has 2 divisors, whose sum is σ = 126147980. Its totient is φ = 126147978.

The previous prime is 126147961. The next prime is 126147991. The reversal of 126147979 is 979741621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126147979 - 2⁵ = 126147947 is a prime.

It is not a weakly prime, because it can be changed into another prime (126147919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63073989 + 63073990.

It is an arithmetic number, because the mean of its divisors is an integer number (63073990).

Almost surely, 2^126147979 is an apocalyptic number.

126147979 is a deficient number, since it is larger than the sum of its proper divisors (1).

126147979 is an equidigital number, since it uses as much as digits as its factorization.

126147979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 46.

The square root of 126147979 is about 11231.5617346832. The cubic root of 126147979 is about 501.5259767189.

The spelling of 126147979 in words is "one hundred twenty-six million, one hundred forty-seven thousand, nine hundred seventy-nine".