133189925 has 12 divisors (see below), whose sum is σ = 180170016. Its totient is φ = 96865200.

The previous prime is 133189921. The next prime is 133189933. The reversal of 133189925 is 529981331.

It is not a de Polignac number, because 133189925 - 2² = 133189921 is a prime.

It is a super-2 number, since 2×133189925² = 35479112243011250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133189921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241889 + ... + 242438.

It is an arithmetic number, because the mean of its divisors is an integer number (15014168).

Almost surely, 2^133189925 is an apocalyptic number.

It is an amenable number.

133189925 is a deficient number, since it is larger than the sum of its proper divisors (46980091).

133189925 is a wasteful number, since it uses less digits than its factorization.

133189925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484348 (or 484343 counting only the distinct ones).

The product of its digits is 58320, while the sum is 41.

The square root of 133189925 is about 11540.7939501578. The cubic root of 133189925 is about 510.6897306261.

The spelling of 133189925 in words is "one hundred thirty-three million, one hundred eighty-nine thousand, nine hundred twenty-five".