133216534 has 8 divisors (see below), whose sum is σ = 217990728. Its totient is φ = 60552960.

The previous prime is 133216511. The next prime is 133216549. The reversal of 133216534 is 435612331.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3027627 + ... + 3027670.

It is an arithmetic number, because the mean of its divisors is an integer number (27248841).

Almost surely, 2^133216534 is an apocalyptic number.

133216534 is a deficient number, since it is larger than the sum of its proper divisors (84774194).

133216534 is a wasteful number, since it uses less digits than its factorization.

133216534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6055310.

The product of its digits is 6480, while the sum is 28.

The square root of 133216534 is about 11541.9467162173. The cubic root of 133216534 is about 510.7237372979.

Adding to 133216534 its reverse (435612331), we get a palindrome (568828865).

The spelling of 133216534 in words is "one hundred thirty-three million, two hundred sixteen thousand, five hundred thirty-four".