126102517 has 2 divisors, whose sum is σ = 126102518. Its totient is φ = 126102516.

The previous prime is 126102503. The next prime is 126102523. The reversal of 126102517 is 715201621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121022001 + 5080516 = 11001^2 + 2254^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126102517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126102491 and 126102500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126102547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63051258 + 63051259.

It is an arithmetic number, because the mean of its divisors is an integer number (63051259).

Almost surely, 2^126102517 is an apocalyptic number.

It is an amenable number.

126102517 is a deficient number, since it is larger than the sum of its proper divisors (1).

126102517 is an equidigital number, since it uses as much as digits as its factorization.

126102517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 126102517 is about 11229.5377019715. The cubic root of 126102517 is about 501.4657217875.

The spelling of 126102517 in words is "one hundred twenty-six million, one hundred two thousand, five hundred seventeen".