135121545353 has 8 divisors (see below), whose sum is σ = 135687325248. Its totient is φ = 134556387984.

The previous prime is 135121545343. The next prime is 135121545371. The reversal of 135121545353 is 353545121531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135121545353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135121545313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281951 + ... + 591387.

It is an arithmetic number, because the mean of its divisors is an integer number (16960915656).

Almost surely, 2^135121545353 is an apocalyptic number.

It is an amenable number.

135121545353 is a deficient number, since it is larger than the sum of its proper divisors (565779895).

135121545353 is a wasteful number, since it uses less digits than its factorization.

135121545353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311263.

The product of its digits is 135000, while the sum is 38.

Adding to 135121545353 its reverse (353545121531), we get a palindrome (488666666884).

The spelling of 135121545353 in words is "one hundred thirty-five billion, one hundred twenty-one million, five hundred forty-five thousand, three hundred fifty-three".