126196513 has 2 divisors, whose sum is σ = 126196514. Its totient is φ = 126196512.

The previous prime is 126196493. The next prime is 126196579. The reversal of 126196513 is 315691621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94926049 + 31270464 = 9743^2 + 5592^2 .

It is a cyclic number.

It is not a de Polignac number, because 126196513 - 2⁵ = 126196481 is a prime.

It is not a weakly prime, because it can be changed into another prime (126196583) by changing a digit.

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, 63098256 + 63098257.

It is an arithmetic number, because the mean of its divisors is an integer number (63098257).

Almost surely, 2^126196513 is an apocalyptic number.

It is an amenable number.

126196513 is a deficient number, since it is larger than the sum of its proper divisors (1).

126196513 is an equidigital number, since it uses as much as digits as its factorization.

126196513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 34.

The square root of 126196513 is about 11233.7221347156. The cubic root of 126196513 is about 501.5902872769.

The spelling of 126196513 in words is "one hundred twenty-six million, one hundred ninety-six thousand, five hundred thirteen".