133252248 has 64 divisors (see below), whose sum is σ = 349251840. Its totient is φ = 42286464.

The previous prime is 133252241. The next prime is 133252253. The reversal of 133252248 is 842252331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133252241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155790 + ... + 156642.

It is an arithmetic number, because the mean of its divisors is an integer number (5457060).

Almost surely, 2^133252248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133252248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174625920).

133252248 is an abundant number, since it is smaller than the sum of its proper divisors (215999592).

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

133252248 is a wasteful number, since it uses less digits than its factorization.

133252248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168 (or 1164 counting only the distinct ones).

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

The square root of 133252248 is about 11543.4937518933. The cubic root of 133252248 is about 510.7693731692.

The spelling of 133252248 in words is "one hundred thirty-three million, two hundred fifty-two thousand, two hundred forty-eight".