133338925 has 6 divisors (see below), whose sum is σ = 165340298. Its totient is φ = 106671120.

The previous prime is 133338917. The next prime is 133338971. The reversal of 133338925 is 529833331.

It can be written as a sum of positive squares in 3 ways, for example, as 1800964 + 131537961 = 1342^2 + 11469^2 .

It is not a de Polignac number, because 133338925 - 2³ = 133338917 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 5 ways as a sum of consecutive naturals, for example, 2666754 + ... + 2666803.

Almost surely, 2^133338925 is an apocalyptic number.

It is an amenable number.

133338925 is a deficient number, since it is larger than the sum of its proper divisors (32001373).

133338925 is an equidigital number, since it uses as much as digits as its factorization.

133338925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5333567 (or 5333562 counting only the distinct ones).

The product of its digits is 58320, while the sum is 37.

The square root of 133338925 is about 11547.2475075232. The cubic root of 133338925 is about 510.8800964074.

The spelling of 133338925 in words is "one hundred thirty-three million, three hundred thirty-eight thousand, nine hundred twenty-five".