133910216 has 24 divisors (see below), whose sum is σ = 275984310. Its totient is φ = 60867840.

The previous prime is 133910177. The next prime is 133910219. The reversal of 133910216 is 612019331.

It can be written as a sum of positive squares in only one way, i.e., 128368900 + 5541316 = 11330^2 + 2354^2 .

It is not an unprimeable number, because it can be changed into a prime (133910219) 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 5 ways as a sum of consecutive naturals, for example, 68201 + ... + 70136.

Almost surely, 2^133910216 is an apocalyptic number.

It is an amenable number.

133910216 is an abundant number, since it is smaller than the sum of its proper divisors (142074094).

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

133910216 is a wasteful number, since it uses less digits than its factorization.

133910216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138365 (or 138350 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 133910216 is about 11571.9581748294. The cubic root of 133910216 is about 511.6086792619.

Adding to 133910216 its reverse (612019331), we get a palindrome (745929547).

The spelling of 133910216 in words is "one hundred thirty-three million, nine hundred ten thousand, two hundred sixteen".