133994256 has 40 divisors (see below), whose sum is σ = 377621664. Its totient is φ = 40604160.

The previous prime is 133994243. The next prime is 133994261. The reversal of 133994256 is 652499331.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126361 + ... + 127416.

Almost surely, 2^133994256 is an apocalyptic number.

133994256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

133994256 is an abundant number, since it is smaller than the sum of its proper divisors (243627408).

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

133994256 is a wasteful number, since it uses less digits than its factorization.

133994256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253799 (or 253793 counting only the distinct ones).

The product of its digits is 174960, while the sum is 42.

The square root of 133994256 is about 11575.5887971196. The cubic root of 133994256 is about 511.7156828034.

The spelling of 133994256 in words is "one hundred thirty-three million, nine hundred ninety-four thousand, two hundred fifty-six".