126283305173 has 4 divisors (see below), whose sum is σ = 126284986380. Its totient is φ = 126281623968.

The previous prime is 126283305131. The next prime is 126283305179. The reversal of 126283305173 is 371503382621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31827273604 + 94456031569 = 178402^2 + 307337^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126283305173 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126283305173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126283305179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722390 + ... + 880007.

It is an arithmetic number, because the mean of its divisors is an integer number (31571246595).

Almost surely, 2^126283305173 is an apocalyptic number.

It is an amenable number.

126283305173 is a deficient number, since it is larger than the sum of its proper divisors (1681207).

126283305173 is an equidigital number, since it uses as much as digits as its factorization.

126283305173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681206.

The product of its (nonzero) digits is 181440, while the sum is 41.

Adding to 126283305173 its reverse (371503382621), we get a palindrome (497786687794).

The spelling of 126283305173 in words is "one hundred twenty-six billion, two hundred eighty-three million, three hundred five thousand, one hundred seventy-three".