133943900 has 36 divisors (see below), whose sum is σ = 291746952. Its totient is φ = 53376960.

The previous prime is 133943899. The next prime is 133943923. The reversal of 133943900 is 9349331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25934 + ... + 30666.

It is an arithmetic number, because the mean of its divisors is an integer number (8104082).

Almost surely, 2^133943900 is an apocalyptic number.

133943900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133943900 is an abundant number, since it is smaller than the sum of its proper divisors (157803052).

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

133943900 is a wasteful number, since it uses less digits than its factorization.

133943900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5030 (or 5023 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 133943900 is about 11573.4134981863. The cubic root of 133943900 is about 511.6515726336.

The spelling of 133943900 in words is "one hundred thirty-three million, nine hundred forty-three thousand, nine hundred".