126306751 has 2 divisors, whose sum is σ = 126306752. Its totient is φ = 126306750.

The previous prime is 126306721. The next prime is 126306757. The reversal of 126306751 is 157603621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126306751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126306757) 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, 63153375 + 63153376.

It is an arithmetic number, because the mean of its divisors is an integer number (63153376).

Almost surely, 2^126306751 is an apocalyptic number.

126306751 is a deficient number, since it is larger than the sum of its proper divisors (1).

126306751 is an equidigital number, since it uses as much as digits as its factorization.

126306751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 126306751 is about 11238.6276297420. The cubic root of 126306751 is about 501.7362982243.

The spelling of 126306751 in words is "one hundred twenty-six million, three hundred six thousand, seven hundred fifty-one".