135993508 has 48 divisors (see below), whose sum is σ = 277724160. Its totient is φ = 57068064.

The previous prime is 135993493. The next prime is 135993511. The reversal of 135993508 is 805399531.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378633 + ... + 378991.

It is an arithmetic number, because the mean of its divisors is an integer number (5785920).

Almost surely, 2^135993508 is an apocalyptic number.

It is an amenable number.

135993508 is an abundant number, since it is smaller than the sum of its proper divisors (141730652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135993508 is a wasteful number, since it uses less digits than its factorization.

135993508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 614 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 43.

The square root of 135993508 is about 11661.6254441651. The cubic root of 135993508 is about 514.2481352759.

The spelling of 135993508 in words is "one hundred thirty-five million, nine hundred ninety-three thousand, five hundred eight".