133178325 has 96 divisors (see below), whose sum is σ = 266649600. Its totient is φ = 58564800.

The previous prime is 133178317. The next prime is 133178329. The reversal of 133178325 is 523871331.

It is not a de Polignac number, because 133178325 - 2³ = 133178317 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

Together with 133471275 it forms an amicable pair .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133178329) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 797392 + ... + 797558.

It is an arithmetic number, because the mean of its divisors is an integer number (2777600).

Almost surely, 2^133178325 is an apocalyptic number.

133178325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133178325 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

133178325 is a wasteful number, since it uses less digits than its factorization.

133178325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 213 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 133178325 is about 11540.2913741378. The cubic root of 133178325 is about 510.6749042472.

The spelling of 133178325 in words is "one hundred thirty-three million, one hundred seventy-eight thousand, three hundred twenty-five".