133235536 has 20 divisors (see below), whose sum is σ = 295021792. Its totient is φ = 57100896.

The previous prime is 133235533. The next prime is 133235549. The reversal of 133235536 is 635532331.

It is a junction number, because it is equal to n+sod(n) for n = 133235498 and 133235507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133235533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594690 + ... + 594913.

Almost surely, 2^133235536 is an apocalyptic number.

133235536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

133235536 is an abundant number, since it is smaller than the sum of its proper divisors (161786256).

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

133235536 is a wasteful number, since it uses less digits than its factorization.

133235536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189618 (or 1189612 counting only the distinct ones).

The product of its digits is 24300, while the sum is 31.

The square root of 133235536 is about 11542.7698582273. The cubic root of 133235536 is about 510.7480193465.

Adding to 133235536 its reverse (635532331), we get a palindrome (768767867).

The spelling of 133235536 in words is "one hundred thirty-three million, two hundred thirty-five thousand, five hundred thirty-six".