133541425 has 6 divisors (see below), whose sum is σ = 165591398. Its totient is φ = 106833120.

The previous prime is 133541417. The next prime is 133541449. The reversal of 133541425 is 524145331.

It can be written as a sum of positive squares in 3 ways, for example, as 289 + 133541136 = 17^2 + 11556^2 .

It is not a de Polignac number, because 133541425 - 2³ = 133541417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133541393 and 133541402.

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, 2670804 + ... + 2670853.

Almost surely, 2^133541425 is an apocalyptic number.

It is an amenable number.

133541425 is a deficient number, since it is larger than the sum of its proper divisors (32049973).

133541425 is an equidigital number, since it uses as much as digits as its factorization.

133541425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5341667 (or 5341662 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 133541425 is about 11556.0125043200. The cubic root of 133541425 is about 511.1385877986.

Adding to 133541425 its reverse (524145331), we get a palindrome (657686756).

The spelling of 133541425 in words is "one hundred thirty-three million, five hundred forty-one thousand, four hundred twenty-five".