133885425 has 24 divisors (see below), whose sum is σ = 227344576. Its totient is φ = 69474240.

The previous prime is 133885397. The next prime is 133885447. The reversal of 133885425 is 524588331.

It is not a de Polignac number, because 133885425 - 2⁵ = 133885393 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21349 + ... + 26898.

Almost surely, 2^133885425 is an apocalyptic number.

133885425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133885425 is a deficient number, since it is larger than the sum of its proper divisors (93459151).

133885425 is a wasteful number, since it uses less digits than its factorization.

133885425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48297 (or 48292 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 133885425 is about 11570.8869582241. The cubic root of 133885425 is about 511.5771056849.

The spelling of 133885425 in words is "one hundred thirty-three million, eight hundred eighty-five thousand, four hundred twenty-five".