133855325 has 6 divisors (see below), whose sum is σ = 165980634. Its totient is φ = 107084240.

The previous prime is 133855313. The next prime is 133855327. The reversal of 133855325 is 523558331.

It can be written as a sum of positive squares in 3 ways, for example, as 28238596 + 105616729 = 5314^2 + 10277^2 .

It is not a de Polignac number, because 133855325 - 2⁶ = 133855261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133855327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2677082 + ... + 2677131.

It is an arithmetic number, because the mean of its divisors is an integer number (27663439).

Almost surely, 2^133855325 is an apocalyptic number.

It is an amenable number.

133855325 is a deficient number, since it is larger than the sum of its proper divisors (32125309).

133855325 is an equidigital number, since it uses as much as digits as its factorization.

133855325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5354223 (or 5354218 counting only the distinct ones).

The product of its digits is 54000, while the sum is 35.

The square root of 133855325 is about 11569.5862069479. The cubic root of 133855325 is about 511.5387653777.

The spelling of 133855325 in words is "one hundred thirty-three million, eight hundred fifty-five thousand, three hundred twenty-five".