126145804801 has 4 divisors (see below), whose sum is σ = 126576336852. Its totient is φ = 125715272752.

The previous prime is 126145804787. The next prime is 126145804817. The reversal of 126145804801 is 108408541621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 108408541621 = 80387 ⋅1348583.

It can be written as a sum of positive squares in 2 ways, for example, as 121399283776 + 4746521025 = 348424^2 + 68895^2 .

It is a cyclic number.

It is not a de Polignac number, because 126145804801 - 2²³ = 126137416193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126145804861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215265586 + ... + 215266171.

It is an arithmetic number, because the mean of its divisors is an integer number (31644084213).

Almost surely, 2^126145804801 is an apocalyptic number.

It is an amenable number.

126145804801 is a deficient number, since it is larger than the sum of its proper divisors (430532051).

126145804801 is an equidigital number, since it uses as much as digits as its factorization.

126145804801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430532050.

The product of its (nonzero) digits is 61440, while the sum is 40.

The spelling of 126145804801 in words is "one hundred twenty-six billion, one hundred forty-five million, eight hundred four thousand, eight hundred one".