126116065 has 4 divisors (see below), whose sum is σ = 151339284. Its totient is φ = 100892848.

The previous prime is 126116063. The next prime is 126116069. The reversal of 126116065 is 560611621.

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 15108769 + 111007296 = 3887^2 + 10536^2 .

It is a cyclic number.

It is not a de Polignac number, because 126116065 - 2¹ = 126116063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126116063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12611602 + ... + 12611611.

It is an arithmetic number, because the mean of its divisors is an integer number (37834821).

Almost surely, 2^126116065 is an apocalyptic number.

It is an amenable number.

126116065 is a deficient number, since it is larger than the sum of its proper divisors (25223219).

126116065 is an equidigital number, since it uses as much as digits as its factorization.

126116065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25223218.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 126116065 is about 11230.1409163020. The cubic root of 126116065 is about 501.4836797010.

Adding to 126116065 its reverse (560611621), we get a palindrome (686727686).

The spelling of 126116065 in words is "one hundred twenty-six million, one hundred sixteen thousand, sixty-five".