133743900 has 72 divisors (see below), whose sum is σ = 397457200. Its totient is φ = 34698240.

The previous prime is 133743899. The next prime is 133743931. The reversal of 133743900 is 9347331.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5076 + ... + 17124.

Almost surely, 2^133743900 is an apocalyptic number.

133743900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133743900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198728600).

133743900 is an abundant number, since it is smaller than the sum of its proper divisors (263713300).

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

133743900 is a wasteful number, since it uses less digits than its factorization.

133743900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12103 (or 12096 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 133743900 is about 11564.7697772156. The cubic root of 133743900 is about 511.3967861428.

The spelling of 133743900 in words is "one hundred thirty-three million, seven hundred forty-three thousand, nine hundred".