133967836 has 6 divisors (see below), whose sum is σ = 234443720. Its totient is φ = 66983916.

The previous prime is 133967831. The next prime is 133967839. The reversal of 133967836 is 638769331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133967831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16745976 + ... + 16745983.

Almost surely, 2^133967836 is an apocalyptic number.

It is an amenable number.

133967836 is a deficient number, since it is larger than the sum of its proper divisors (100475884).

133967836 is a wasteful number, since it uses less digits than its factorization.

133967836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33491963 (or 33491961 counting only the distinct ones).

The product of its digits is 489888, while the sum is 46.

The square root of 133967836 is about 11574.4475462114. The cubic root of 133967836 is about 511.6820484836.

The spelling of 133967836 in words is "one hundred thirty-three million, nine hundred sixty-seven thousand, eight hundred thirty-six".