126173353 has 2 divisors, whose sum is σ = 126173354. Its totient is φ = 126173352.

The previous prime is 126173351. The next prime is 126173387. The reversal of 126173353 is 353371621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123587689 + 2585664 = 11117^2 + 1608^2 .

It is a cyclic number.

It is not a de Polignac number, because 126173353 - 2¹ = 126173351 is a prime.

Together with 126173351, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (126173351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63086676 + 63086677.

It is an arithmetic number, because the mean of its divisors is an integer number (63086677).

Almost surely, 2^126173353 is an apocalyptic number.

It is an amenable number.

126173353 is a deficient number, since it is larger than the sum of its proper divisors (1).

126173353 is an equidigital number, since it uses as much as digits as its factorization.

126173353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 31.

The square root of 126173353 is about 11232.6912625604. The cubic root of 126173353 is about 501.5596008987.

The spelling of 126173353 in words is "one hundred twenty-six million, one hundred seventy-three thousand, three hundred fifty-three".