133500789 has 6 divisors (see below), whose sum is σ = 192834486. Its totient is φ = 89000520.

The previous prime is 133500781. The next prime is 133500791. The reversal of 133500789 is 987005331.

It can be written as a sum of positive squares in only one way, i.e., 115734564 + 17766225 = 10758^2 + 4215^2 .

It is not a de Polignac number, because 133500789 - 2³ = 133500781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133500781) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7416702 + ... + 7416719.

It is an arithmetic number, because the mean of its divisors is an integer number (32139081).

Almost surely, 2^133500789 is an apocalyptic number.

It is an amenable number.

133500789 is a deficient number, since it is larger than the sum of its proper divisors (59333697).

133500789 is a wasteful number, since it uses less digits than its factorization.

133500789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14833427 (or 14833424 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 133500789 is about 11554.2541516101. The cubic root of 133500789 is about 511.0867368846.

The spelling of 133500789 in words is "one hundred thirty-three million, five hundred thousand, seven hundred eighty-nine".