133425 has 18 divisors (see below), whose sum is σ = 239382. Its totient is φ = 71040.

The previous prime is 133417. The next prime is 133439. The reversal of 133425 is 524331.

It can be written as a sum of positive squares in 3 ways, for example, as 12321 + 121104 = 111^2 + 348^2 .

It is not a de Polignac number, because 133425 - 2³ = 133417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133398 and 133407.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 72 + ... + 521.

It is an arithmetic number, because the mean of its divisors is an integer number (13299).

2¹³³⁴²⁵ is an apocalyptic number.

133425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133425 is a deficient number, since it is larger than the sum of its proper divisors (105957).

133425 is a wasteful number, since it uses less digits than its factorization.

133425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609 (or 601 counting only the distinct ones).

The product of its digits is 360, while the sum is 18.

The square root of 133425 is about 365.2738698566. The cubic root of 133425 is about 51.0990003162.

Adding to 133425 its reverse (524331), we get a palindrome (657756).

The spelling of 133425 in words is "one hundred thirty-three thousand, four hundred twenty-five".