135115373 has 2 divisors, whose sum is σ = 135115374. Its totient is φ = 135115372.

The previous prime is 135115307. The next prime is 135115397. The reversal of 135115373 is 373511531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84235684 + 50879689 = 9178^2 + 7133^2 .

It is an emirp because it is prime and its reverse (373511531) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135115373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135114373) 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, 67557686 + 67557687.

It is an arithmetic number, because the mean of its divisors is an integer number (67557687).

Almost surely, 2^135115373 is an apocalyptic number.

It is an amenable number.

135115373 is a deficient number, since it is larger than the sum of its proper divisors (1).

135115373 is an equidigital number, since it uses as much as digits as its factorization.

135115373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4725, while the sum is 29.

The square root of 135115373 is about 11623.9138417316. The cubic root of 135115373 is about 513.1388794702.

The spelling of 135115373 in words is "one hundred thirty-five million, one hundred fifteen thousand, three hundred seventy-three".