133787912 has 8 divisors (see below), whose sum is σ = 250852350. Its totient is φ = 66893952.

The previous prime is 133787887. The next prime is 133787939. The reversal of 133787912 is 219787331.

133787912 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 123965956 + 9821956 = 11134^2 + 3134^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 133787912.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8361737 + ... + 8361752.

Almost surely, 2^133787912 is an apocalyptic number.

It is an amenable number.

133787912 is a deficient number, since it is larger than the sum of its proper divisors (117064438).

133787912 is a wasteful number, since it uses less digits than its factorization.

133787912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16723495 (or 16723491 counting only the distinct ones).

The product of its digits is 63504, while the sum is 41.

The square root of 133787912 is about 11566.6724687786. The cubic root of 133787912 is about 511.4528762446.

The spelling of 133787912 in words is "one hundred thirty-three million, seven hundred eighty-seven thousand, nine hundred twelve".