133801125 has 16 divisors (see below), whose sum is σ = 222645696. Its totient is φ = 71360400.

The previous prime is 133801117. The next prime is 133801159. The reversal of 133801125 is 521108331.

It is not a de Polignac number, because 133801125 - 2³ = 133801117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133801095 and 133801104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178027 + ... + 178776.

It is an arithmetic number, because the mean of its divisors is an integer number (13915356).

Almost surely, 2^133801125 is an apocalyptic number.

133801125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133801125 is a deficient number, since it is larger than the sum of its proper divisors (88844571).

133801125 is an equidigital number, since it uses as much as digits as its factorization.

133801125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356821 (or 356811 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 133801125 is about 11567.2436215375. The cubic root of 133801125 is about 511.4697128538.

Adding to 133801125 its reverse (521108331), we get a palindrome (654909456).

The spelling of 133801125 in words is "one hundred thirty-three million, eight hundred one thousand, one hundred twenty-five".