126267173 has 2 divisors, whose sum is σ = 126267174. Its totient is φ = 126267172.

The previous prime is 126267157. The next prime is 126267209. The reversal of 126267173 is 371762621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121396324 + 4870849 = 11018^2 + 2207^2 .

It is a cyclic number.

It is not a de Polignac number, because 126267173 - 2⁴ = 126267157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128267173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63133586 + 63133587.

It is an arithmetic number, because the mean of its divisors is an integer number (63133587).

Almost surely, 2^126267173 is an apocalyptic number.

It is an amenable number.

126267173 is a deficient number, since it is larger than the sum of its proper divisors (1).

126267173 is an equidigital number, since it uses as much as digits as its factorization.

126267173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 126267173 is about 11236.8666896070. The cubic root of 126267173 is about 501.6838866851.

The spelling of 126267173 in words is "one hundred twenty-six million, two hundred sixty-seven thousand, one hundred seventy-three".