135445361 has 2 divisors, whose sum is σ = 135445362. Its totient is φ = 135445360.

The previous prime is 135445327. The next prime is 135445423. The reversal of 135445361 is 163544531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109077136 + 26368225 = 10444^2 + 5135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135445361 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135445861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67722680 + 67722681.

It is an arithmetic number, because the mean of its divisors is an integer number (67722681).

Almost surely, 2^135445361 is an apocalyptic number.

It is an amenable number.

135445361 is a deficient number, since it is larger than the sum of its proper divisors (1).

135445361 is an equidigital number, since it uses as much as digits as its factorization.

135445361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 32.

The square root of 135445361 is about 11638.0995441696. The cubic root of 135445361 is about 513.5562808017.

Adding to 135445361 its reverse (163544531), we get a palindrome (298989892).

The spelling of 135445361 in words is "one hundred thirty-five million, four hundred forty-five thousand, three hundred sixty-one".