126091717 has 8 divisors (see below), whose sum is σ = 129198240. Its totient is φ = 123012240.

The previous prime is 126091661. The next prime is 126091723. The reversal of 126091717 is 717190621.

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 126091717 - 2¹¹ = 126089669 is a prime.

It is a super-3 number, since 3×126091717³ (a number of 25 digits) contains 333 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 (126091117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2842 + ... + 16132.

It is an arithmetic number, because the mean of its divisors is an integer number (16149780).

Almost surely, 2^126091717 is an apocalyptic number.

It is an amenable number.

126091717 is a deficient number, since it is larger than the sum of its proper divisors (3106523).

126091717 is a wasteful number, since it uses less digits than its factorization.

126091717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13523.

The product of its (nonzero) digits is 5292, while the sum is 34.

The square root of 126091717 is about 11229.0568170261. The cubic root of 126091717 is about 501.4514054345.

The spelling of 126091717 in words is "one hundred twenty-six million, ninety-one thousand, seven hundred seventeen".