133421125 has 32 divisors (see below), whose sum is σ = 172224000. Its totient is φ = 103147200.

The previous prime is 133421111. The next prime is 133421147. The reversal of 133421125 is 521124331.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-133421125 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133421096 and 133421105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 582511 + ... + 582739.

It is an arithmetic number, because the mean of its divisors is an integer number (5382000).

Almost surely, 2^133421125 is an apocalyptic number.

It is an amenable number.

133421125 is a deficient number, since it is larger than the sum of its proper divisors (38802875).

133421125 is an equidigital number, since it uses as much as digits as its factorization.

133421125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 372 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 133421125 is about 11550.8062489161. The cubic root of 133421125 is about 510.9850562991.

Adding to 133421125 its reverse (521124331), we get a palindrome (654545456).

The spelling of 133421125 in words is "one hundred thirty-three million, four hundred twenty-one thousand, one hundred twenty-five".