133433140 has 24 divisors (see below), whose sum is σ = 284159232. Its totient is φ = 52620960.

The previous prime is 133433129. The next prime is 133433159. The reversal of 133433140 is 41334331.

It is a happy number.

It is a congruent 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, 45564 + ... + 48403.

It is an arithmetic number, because the mean of its divisors is an integer number (11839968).

Almost surely, 2^133433140 is an apocalyptic number.

133433140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133433140 is an abundant number, since it is smaller than the sum of its proper divisors (150726092).

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

133433140 is a wasteful number, since it uses less digits than its factorization.

133433140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94047 (or 94045 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 133433140 is about 11551.3263307726. The cubic root of 133433140 is about 511.0003944528. Note that the first 3 decimals are identical.

Adding to 133433140 its reverse (41334331), we get a palindrome (174767471).

The spelling of 133433140 in words is "one hundred thirty-three million, four hundred thirty-three thousand, one hundred forty".