133604235 has 40 divisors (see below), whose sum is σ = 242832480. Its totient is φ = 70263936.

The previous prime is 133604209. The next prime is 133604239. The reversal of 133604235 is 532406331.

It is a happy number.

133604235 is a `hidden beast` number, since 1 + 33 + 604 + 23 + 5 = 666.

It is not a de Polignac number, because 133604235 - 2¹⁴ = 133587851 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 133604199 and 133604208.

It is not an unprimeable number, because it can be changed into a prime (133604239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27306 + ... + 31824.

It is an arithmetic number, because the mean of its divisors is an integer number (6070812).

Almost surely, 2^133604235 is an apocalyptic number.

133604235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133604235 is a deficient number, since it is larger than the sum of its proper divisors (109228245).

133604235 is an equidigital number, since it uses as much as digits as its factorization.

133604235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4609 (or 4600 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 133604235 is about 11558.7298177611. The cubic root of 133604235 is about 511.2187117068.

The spelling of 133604235 in words is "one hundred thirty-three million, six hundred four thousand, two hundred thirty-five".