133828173 has 8 divisors (see below), whose sum is σ = 198264000. Its totient is φ = 89218764.

The previous prime is 133828171. The next prime is 133828187. The reversal of 133828173 is 371828331.

It is not a de Polignac number, because 133828173 - 2¹ = 133828171 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133828171) 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, 2478273 + ... + 2478326.

It is an arithmetic number, because the mean of its divisors is an integer number (24783000).

Almost surely, 2^133828173 is an apocalyptic number.

It is an amenable number.

133828173 is a deficient number, since it is larger than the sum of its proper divisors (64435827).

133828173 is an equidigital number, since it uses as much as digits as its factorization.

133828173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4956608 (or 4956602 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 133828173 is about 11568.4127260398. The cubic root of 133828173 is about 511.5041751966.

The spelling of 133828173 in words is "one hundred thirty-three million, eight hundred twenty-eight thousand, one hundred seventy-three".