126917 has 4 divisors (see below), whose sum is σ = 145056. Its totient is φ = 108780.

The previous prime is 126913. The next prime is 126923. The reversal of 126917 is 719621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 126917 - 2² = 126913 is a prime.

It is a super-2 number, since 2×126917² = 32215849778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 126917.

It is not an unprimeable number, because it can be changed into a prime (126913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9059 + ... + 9072.

It is an arithmetic number, because the mean of its divisors is an integer number (36264).

2¹²⁶⁹¹⁷ is an apocalyptic number.

It is an amenable number.

126917 is a deficient number, since it is larger than the sum of its proper divisors (18139).

126917 is an equidigital number, since it uses as much as digits as its factorization.

126917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18138.

The product of its digits is 756, while the sum is 26.

The square root of 126917 is about 356.2541227832. The cubic root of 126917 is about 50.2543043927.

Subtracting 126917 from its reverse (719621), we obtain a cube (592704 = 84³).

The spelling of 126917 in words is "one hundred twenty-six thousand, nine hundred seventeen".