133504248 has 32 divisors (see below), whose sum is σ = 334454400. Its totient is φ = 44408928.

The previous prime is 133504229. The next prime is 133504271. The reversal of 133504248 is 842405331.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6543 + ... + 17601.

It is an arithmetic number, because the mean of its divisors is an integer number (10451700).

Almost surely, 2^133504248 is an apocalyptic number.

It is an amenable number.

133504248 is an abundant number, since it is smaller than the sum of its proper divisors (200950152).

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

133504248 is a wasteful number, since it uses less digits than its factorization.

133504248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11571 (or 11567 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 133504248 is about 11554.4038357676. The cubic root of 133504248 is about 511.0911509253.

Adding to 133504248 its reverse (842405331), we get a palindrome (975909579).

The spelling of 133504248 in words is "one hundred thirty-three million, five hundred four thousand, two hundred forty-eight".