126180317 has 2 divisors, whose sum is σ = 126180318. Its totient is φ = 126180316.

The previous prime is 126180287. The next prime is 126180337. The reversal of 126180317 is 713081621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120582361 + 5597956 = 10981^2 + 2366^2 .

It is a cyclic number.

It is not a de Polignac number, because 126180317 - 2¹² = 126176221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126180317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126180337) 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 as a sum of consecutive naturals, namely, 63090158 + 63090159.

It is an arithmetic number, because the mean of its divisors is an integer number (63090159).

Almost surely, 2^126180317 is an apocalyptic number.

It is an amenable number.

126180317 is a deficient number, since it is larger than the sum of its proper divisors (1).

126180317 is an equidigital number, since it uses as much as digits as its factorization.

126180317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 126180317 is about 11233.0012463277. The cubic root of 126180317 is about 501.5688284065.

The spelling of 126180317 in words is "one hundred twenty-six million, one hundred eighty thousand, three hundred seventeen".