133505234 has 8 divisors (see below), whose sum is σ = 202240908. Its totient is φ = 66091600.

The previous prime is 133505231. The next prime is 133505243. The reversal of 133505234 is 432505331.

It can be written as a sum of positive squares in 2 ways, for example, as 119793025 + 13712209 = 10945^2 + 3703^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (133505231) 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, 330257 + ... + 330660.

Almost surely, 2^133505234 is an apocalyptic number.

133505234 is a deficient number, since it is larger than the sum of its proper divisors (68735674).

133505234 is a wasteful number, since it uses less digits than its factorization.

133505234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661020.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 133505234 is about 11554.4465034029. The cubic root of 133505234 is about 511.0924091491.

The spelling of 133505234 in words is "one hundred thirty-three million, five hundred five thousand, two hundred thirty-four".