135121525304 has 16 divisors (see below), whose sum is σ = 253784475000. Its totient is φ = 67445665312.

The previous prime is 135121525283. The next prime is 135121525333. The reversal of 135121525304 is 403525121531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14382179 + ... + 14391570.

Almost surely, 2^135121525304 is an apocalyptic number.

It is an amenable number.

135121525304 is a deficient number, since it is larger than the sum of its proper divisors (118662949696).

135121525304 is a wasteful number, since it uses less digits than its factorization.

135121525304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28774342 (or 28774338 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 135121525304 its reverse (403525121531), we get a palindrome (538646646835).

The spelling of 135121525304 in words is "one hundred thirty-five billion, one hundred twenty-one million, five hundred twenty-five thousand, three hundred four".