135980236 has 24 divisors (see below), whose sum is σ = 272230560. Its totient is φ = 58219392.

The previous prime is 135980213. The next prime is 135980267. The reversal of 135980236 is 632089531.

It is a junction number, because it is equal to n+sod(n) for n = 135980195 and 135980204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38430 + ... + 41818.

It is an arithmetic number, because the mean of its divisors is an integer number (11342940).

Almost surely, 2^135980236 is an apocalyptic number.

It is an amenable number.

135980236 is an abundant number, since it is smaller than the sum of its proper divisors (136250324).

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

135980236 is a wasteful number, since it uses less digits than its factorization.

135980236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4833 (or 4831 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 135980236 is about 11661.0563843933. The cubic root of 135980236 is about 514.2314057438.

The spelling of 135980236 in words is "one hundred thirty-five million, nine hundred eighty thousand, two hundred thirty-six".