133867156 has 6 divisors (see below), whose sum is σ = 234267530. Its totient is φ = 66933576.

The previous prime is 133867133. The next prime is 133867157. The reversal of 133867156 is 651768331.

It is a happy number.

133867156 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., 133171600 + 695556 = 11540^2 + 834^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133867157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16733391 + ... + 16733398.

Almost surely, 2^133867156 is an apocalyptic number.

It is an amenable number.

133867156 is a deficient number, since it is larger than the sum of its proper divisors (100400374).

133867156 is a wasteful number, since it uses less digits than its factorization.

133867156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33466793 (or 33466791 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 133867156 is about 11570.0974931070. The cubic root of 133867156 is about 511.5538359694.

The spelling of 133867156 in words is "one hundred thirty-three million, eight hundred sixty-seven thousand, one hundred fifty-six".