126712717 has 8 divisors (see below), whose sum is σ = 132026112. Its totient is φ = 121476000.

The previous prime is 126712709. The next prime is 126712741. The reversal of 126712717 is 717217621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126712717 - 2³ = 126712709 is a prime.

It is a super-2 number, since 2×126712717² = 32112225299044178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126712217) 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 in 7 ways as a sum of consecutive naturals, for example, 15784 + ... + 22417.

It is an arithmetic number, because the mean of its divisors is an integer number (16503264).

Almost surely, 2^126712717 is an apocalyptic number.

It is an amenable number.

126712717 is a deficient number, since it is larger than the sum of its proper divisors (5313395).

126712717 is a wasteful number, since it uses less digits than its factorization.

126712717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38339.

The product of its digits is 8232, while the sum is 34.

The square root of 126712717 is about 11256.6743312579. The cubic root of 126712717 is about 502.2732714766.

The spelling of 126712717 in words is "one hundred twenty-six million, seven hundred twelve thousand, seven hundred seventeen".