126984079 has 2 divisors, whose sum is σ = 126984080. Its totient is φ = 126984078.

The previous prime is 126984071. The next prime is 126984097. The reversal of 126984079 is 970489621.

Together with next prime (126984097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126984079 - 2³ = 126984071 is a prime.

It is a super-2 number, since 2×126984079² = 32249912638956482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126984071) 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, 63492039 + 63492040.

It is an arithmetic number, because the mean of its divisors is an integer number (63492040).

Almost surely, 2^126984079 is an apocalyptic number.

126984079 is a deficient number, since it is larger than the sum of its proper divisors (1).

126984079 is an equidigital number, since it uses as much as digits as its factorization.

126984079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 126984079 is about 11268.7212672956. The cubic root of 126984079 is about 502.6315641088.

The spelling of 126984079 in words is "one hundred twenty-six million, nine hundred eighty-four thousand, seventy-nine".