133448 has 16 divisors (see below), whose sum is σ = 286080. Its totient is φ = 57168.

The previous prime is 133447. The next prime is 133451. The reversal of 133448 is 844331.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1136 + ... + 1247.

It is an arithmetic number, because the mean of its divisors is an integer number (17880).

2¹³³⁴⁴⁸ is an apocalyptic number.

It is an amenable number.

133448 is an abundant number, since it is smaller than the sum of its proper divisors (152632).

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

133448 is a wasteful number, since it uses less digits than its factorization.

133448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396 (or 2392 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 133448 is about 365.3053517265. The cubic root of 133448 is about 51.1019363214.

Adding to 133448 its reverse (844331), we get a palindrome (977779).

The spelling of 133448 in words is "one hundred thirty-three thousand, four hundred forty-eight".