133125020 has 48 divisors (see below), whose sum is σ = 336322560. Its totient is φ = 43239744.

The previous prime is 133125019. The next prime is 133125023. The reversal of 133125020 is 20521331.

It is a self number, because there is not a number n which added to its sum of digits gives 133125020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133125023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22364 + ... + 27683.

It is an arithmetic number, because the mean of its divisors is an integer number (7006720).

Almost surely, 2^133125020 is an apocalyptic number.

133125020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133125020 is an abundant number, since it is smaller than the sum of its proper divisors (203197540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133125020 is a wasteful number, since it uses less digits than its factorization.

133125020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50082 (or 50080 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 133125020 is about 11537.9816259171. The cubic root of 133125020 is about 510.6067621317.

Adding to 133125020 its reverse (20521331), we get a palindrome (153646351).

The spelling of 133125020 in words is "one hundred thirty-three million, one hundred twenty-five thousand, twenty".