133747733 has 16 divisors (see below), whose sum is σ = 158269440. Its totient is φ = 110602800.

The previous prime is 133747709. The next prime is 133747751. The reversal of 133747733 is 337747331.

It is not a de Polignac number, because 133747733 - 2¹² = 133743637 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133747703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90188 + ... + 91658.

It is an arithmetic number, because the mean of its divisors is an integer number (9891840).

Almost surely, 2^133747733 is an apocalyptic number.

It is an amenable number.

133747733 is a deficient number, since it is larger than the sum of its proper divisors (24521707).

133747733 is a wasteful number, since it uses less digits than its factorization.

133747733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928.

The product of its digits is 111132, while the sum is 38.

The square root of 133747733 is about 11564.9354948482. The cubic root of 133747733 is about 511.4016715124.

The spelling of 133747733 in words is "one hundred thirty-three million, seven hundred forty-seven thousand, seven hundred thirty-three".