126173373 has 4 divisors (see below), whose sum is σ = 168231168. Its totient is φ = 84115580.

The previous prime is 126173353. The next prime is 126173387. The reversal of 126173373 is 373371621.

It is a happy number.

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 126173373 - 2¹⁰ = 126172349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126173323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21028893 + ... + 21028898.

It is an arithmetic number, because the mean of its divisors is an integer number (42057792).

Almost surely, 2^126173373 is an apocalyptic number.

It is an amenable number.

126173373 is a deficient number, since it is larger than the sum of its proper divisors (42057795).

126173373 is an equidigital number, since it uses as much as digits as its factorization.

126173373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42057794.

The product of its digits is 15876, while the sum is 33.

The square root of 126173373 is about 11232.6921528189. The cubic root of 126173373 is about 501.5596273998.

The spelling of 126173373 in words is "one hundred twenty-six million, one hundred seventy-three thousand, three hundred seventy-three".