126087617 has 2 divisors, whose sum is σ = 126087618. Its totient is φ = 126087616.

The previous prime is 126087613. The next prime is 126087659. The reversal of 126087617 is 716780621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117700801 + 8386816 = 10849^2 + 2896^2 .

It is a cyclic number.

It is not a de Polignac number, because 126087617 - 2² = 126087613 is a prime.

It is not a weakly prime, because it can be changed into another prime (126087613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63043808 + 63043809.

It is an arithmetic number, because the mean of its divisors is an integer number (63043809).

Almost surely, 2^126087617 is an apocalyptic number.

It is an amenable number.

126087617 is a deficient number, since it is larger than the sum of its proper divisors (1).

126087617 is an equidigital number, since it uses as much as digits as its factorization.

126087617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 126087617 is about 11228.8742534592. The cubic root of 126087617 is about 501.4459703087.

The spelling of 126087617 in words is "one hundred twenty-six million, eighty-seven thousand, six hundred seventeen".