133425405 has 48 divisors (see below), whose sum is σ = 236658240. Its totient is φ = 69525504.

The previous prime is 133425359. The next prime is 133425421. The reversal of 133425405 is 504524331.

It is not a de Polignac number, because 133425405 - 2¹¹ = 133423357 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 519037 + ... + 519293.

It is an arithmetic number, because the mean of its divisors is an integer number (4930380).

Almost surely, 2^133425405 is an apocalyptic number.

133425405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133425405 is a deficient number, since it is larger than the sum of its proper divisors (103232835).

133425405 is a wasteful number, since it uses less digits than its factorization.

133425405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 133425405 is about 11550.9915158830. The cubic root of 133425405 is about 510.9905201832.

Adding to 133425405 its reverse (504524331), we get a palindrome (637949736).

The spelling of 133425405 in words is "one hundred thirty-three million, four hundred twenty-five thousand, four hundred five".