133719988 has 12 divisors (see below), whose sum is σ = 241558912. Its totient is φ = 64703160.

The previous prime is 133719959. The next prime is 133720009. The reversal of 133719988 is 889917331.

It is a super-3 number, since 3×133719988³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539070 + ... + 539317.

Almost surely, 2^133719988 is an apocalyptic number.

It is an amenable number.

133719988 is a deficient number, since it is larger than the sum of its proper divisors (107838924).

133719988 is a wasteful number, since it uses less digits than its factorization.

133719988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078422 (or 1078420 counting only the distinct ones).

The product of its digits is 326592, while the sum is 49.

The square root of 133719988 is about 11563.7359015156. The cubic root of 133719988 is about 511.3663068741.

The spelling of 133719988 in words is "one hundred thirty-three million, seven hundred nineteen thousand, nine hundred eighty-eight".