133345525 has 12 divisors (see below), whose sum is σ = 166559652. Its totient is φ = 105895040.

The previous prime is 133345519. The next prime is 133345543. The reversal of 133345525 is 525543331.

It can be written as a sum of positive squares in 6 ways, for example, as 27646564 + 105698961 = 5258^2 + 10281^2 .

It is not a de Polignac number, because 133345525 - 2⁹ = 133345013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16042 + ... + 22891.

It is an arithmetic number, because the mean of its divisors is an integer number (13879971).

Almost surely, 2^133345525 is an apocalyptic number.

It is an amenable number.

133345525 is a deficient number, since it is larger than the sum of its proper divisors (33214127).

133345525 is a wasteful number, since it uses less digits than its factorization.

133345525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39080 (or 39075 counting only the distinct ones).

The product of its digits is 27000, while the sum is 31.

The square root of 133345525 is about 11547.5332863777. The cubic root of 133345525 is about 510.8885254364. Note that the first 3 decimals are identical.

Adding to 133345525 its reverse (525543331), we get a palindrome (658888856).

The spelling of 133345525 in words is "one hundred thirty-three million, three hundred forty-five thousand, five hundred twenty-five".