134244243989 has 2 divisors, whose sum is σ = 134244243990. Its totient is φ = 134244243988.

The previous prime is 134244243953. The next prime is 134244244061. The reversal of 134244243989 is 989342442431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133762090225 + 482153764 = 365735^2 + 21958^2 .

It is a cyclic number.

It is not a de Polignac number, because 134244243989 - 2²⁰ = 134243195413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134244243989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134244243949) 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 as a sum of consecutive naturals, namely, 67122121994 + 67122121995.

It is an arithmetic number, because the mean of its divisors is an integer number (67122121995).

Almost surely, 2^134244243989 is an apocalyptic number.

It is an amenable number.

134244243989 is a deficient number, since it is larger than the sum of its proper divisors (1).

134244243989 is an equidigital number, since it uses as much as digits as its factorization.

134244243989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5971968, while the sum is 53.

The spelling of 134244243989 in words is "one hundred thirty-four billion, two hundred forty-four million, two hundred forty-three thousand, nine hundred eighty-nine".