126125041745 has 4 divisors (see below), whose sum is σ = 151350050100. Its totient is φ = 100900033392.

The previous prime is 126125041699. The next prime is 126125041747. The reversal of 126125041745 is 547140521621.

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 89171515456 + 36953526289 = 298616^2 + 192233^2 .

It is a cyclic number.

It is not a de Polignac number, because 126125041745 - 2¹⁴ = 126125025361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126125041699 and 126125041708.

It is not an unprimeable number, because it can be changed into a prime (126125041747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12612504170 + ... + 12612504179.

It is an arithmetic number, because the mean of its divisors is an integer number (37837512525).

Almost surely, 2^126125041745 is an apocalyptic number.

It is an amenable number.

126125041745 is a deficient number, since it is larger than the sum of its proper divisors (25225008355).

126125041745 is an equidigital number, since it uses as much as digits as its factorization.

126125041745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25225008354.

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 126125041745 in words is "one hundred twenty-six billion, one hundred twenty-five million, forty-one thousand, seven hundred forty-five".