133743894 has 16 divisors (see below), whose sum is σ = 267613632. Its totient is φ = 44560328.

The previous prime is 133743881. The next prime is 133743899. The reversal of 133743894 is 498347331.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133743899) 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, 14017 + ... + 21539.

It is an arithmetic number, because the mean of its divisors is an integer number (16725852).

Almost surely, 2^133743894 is an apocalyptic number.

133743894 is an abundant number, since it is smaller than the sum of its proper divisors (133869738).

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

133743894 is a wasteful number, since it uses less digits than its factorization.

133743894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10491.

The product of its digits is 217728, while the sum is 42.

The square root of 133743894 is about 11564.7695178071. The cubic root of 133743894 is about 511.3967784954.

The spelling of 133743894 in words is "one hundred thirty-three million, seven hundred forty-three thousand, eight hundred ninety-four".