126326517 has 4 divisors (see below), whose sum is σ = 168435360. Its totient is φ = 84217676.

The previous prime is 126326491. The next prime is 126326533. The reversal of 126326517 is 715623621.

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 a cyclic number.

It is not a de Polignac number, because 126326517 - 2⁸ = 126326261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126326567) 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 3 ways as a sum of consecutive naturals, for example, 21054417 + ... + 21054422.

It is an arithmetic number, because the mean of its divisors is an integer number (42108840).

Almost surely, 2^126326517 is an apocalyptic number.

It is an amenable number.

126326517 is a deficient number, since it is larger than the sum of its proper divisors (42108843).

126326517 is an equidigital number, since it uses as much as digits as its factorization.

126326517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42108842.

The product of its digits is 15120, while the sum is 33.

The square root of 126326517 is about 11239.5069731728. The cubic root of 126326517 is about 501.7624694366.

The spelling of 126326517 in words is "one hundred twenty-six million, three hundred twenty-six thousand, five hundred seventeen".