133976856 has 32 divisors (see below), whose sum is σ = 360707760. Its totient is φ = 41223552.

The previous prime is 133976851. The next prime is 133976893. The reversal of 133976856 is 658679331.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133976851) 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, 214395 + ... + 215018.

Almost surely, 2^133976856 is an apocalyptic number.

It is an amenable number.

133976856 is an abundant number, since it is smaller than the sum of its proper divisors (226730904).

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

133976856 is a wasteful number, since it uses less digits than its factorization.

133976856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429435 (or 429431 counting only the distinct ones).

The product of its digits is 816480, while the sum is 48.

The square root of 133976856 is about 11574.8371910796. The cubic root of 133976856 is about 511.6935320074.

The spelling of 133976856 in words is "one hundred thirty-three million, nine hundred seventy-six thousand, eight hundred fifty-six".