133511325 has 12 divisors (see below), whose sum is σ = 220738848. Its totient is φ = 71206000.

The previous prime is 133511321. The next prime is 133511359. The reversal of 133511325 is 523115331.

It is not a de Polignac number, because 133511325 - 2² = 133511321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133511295 and 133511304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133511321) by changing a digit.

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, 890001 + ... + 890150.

It is an arithmetic number, because the mean of its divisors is an integer number (18394904).

Almost surely, 2^133511325 is an apocalyptic number.

133511325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133511325 is a deficient number, since it is larger than the sum of its proper divisors (87227523).

133511325 is a wasteful number, since it uses less digits than its factorization.

133511325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780164 (or 1780159 counting only the distinct ones).

The product of its digits is 1350, while the sum is 24.

The square root of 133511325 is about 11554.7100785783. The cubic root of 133511325 is about 511.1001816696.

Adding to 133511325 its reverse (523115331), we get a palindrome (656626656).

The spelling of 133511325 in words is "one hundred thirty-three million, five hundred eleven thousand, three hundred twenty-five".