133788336 has 40 divisors (see below), whose sum is σ = 377041344. Its totient is φ = 40541760.

The previous prime is 133788331. The next prime is 133788373. The reversal of 133788336 is 633887331.

It is not an unprimeable number, because it can be changed into a prime (133788331) 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, 126166 + ... + 127221.

Almost surely, 2^133788336 is an apocalyptic number.

133788336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

133788336 is an abundant number, since it is smaller than the sum of its proper divisors (243253008).

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

133788336 is a wasteful number, since it uses less digits than its factorization.

133788336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253409 (or 253403 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 133788336 is about 11566.6907972851. The cubic root of 133788336 is about 511.4534165420.

The spelling of 133788336 in words is "one hundred thirty-three million, seven hundred eighty-eight thousand, three hundred thirty-six".