133000120 has 32 divisors (see below), whose sum is σ = 326455920. Its totient is φ = 48363520.

The previous prime is 133000117. The next prime is 133000121. The reversal of 133000120 is 21000331.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 133000097 and 133000106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133000121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150697 + ... + 151576.

Almost surely, 2^133000120 is an apocalyptic number.

133000120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133000120 is an abundant number, since it is smaller than the sum of its proper divisors (193455800).

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

133000120 is a wasteful number, since it uses less digits than its factorization.

133000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302295 (or 302291 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 133000120 is about 11532.5677973294. The cubic root of 133000120 is about 510.4470257180.

Adding to 133000120 its reverse (21000331), we get a palindrome (154000451).

The spelling of 133000120 in words is "one hundred thirty-three million, one hundred twenty", and thus it is an aban number.