126893040173 has 2 divisors, whose sum is σ = 126893040174. Its totient is φ = 126893040172.

The previous prime is 126893040163. The next prime is 126893040217. The reversal of 126893040173 is 371040398621.

It is an a-pointer prime, because the next prime (126893040217) can be obtained adding 126893040173 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115571441764 + 11321598409 = 339958^2 + 106403^2 .

It is a cyclic number.

It is not a de Polignac number, because 126893040173 - 2¹⁰ = 126893039149 is a prime.

It is a super-2 number, since 2×126893040173² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126893040133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63446520086 + 63446520087.

It is an arithmetic number, because the mean of its divisors is an integer number (63446520087).

Almost surely, 2^126893040173 is an apocalyptic number.

It is an amenable number.

126893040173 is a deficient number, since it is larger than the sum of its proper divisors (1).

126893040173 is an equidigital number, since it uses as much as digits as its factorization.

126893040173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 126893040173 in words is "one hundred twenty-six billion, eight hundred ninety-three million, forty thousand, one hundred seventy-three".