135448 has 8 divisors (see below), whose sum is σ = 253980. Its totient is φ = 67720.

The previous prime is 135433. The next prime is 135449. The reversal of 135448 is 844531.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135449) by changing a digit.

135448 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 8458 + ... + 8473.

2¹³⁵⁴⁴⁸ is an apocalyptic number.

It is an amenable number.

135448 is a deficient number, since it is larger than the sum of its proper divisors (118532).

135448 is a wasteful number, since it uses less digits than its factorization.

135448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16937 (or 16933 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 135448 is about 368.0326072510. The cubic root of 135448 is about 51.3559616135.

Adding to 135448 its reverse (844531), we get a palindrome (979979).

The spelling of 135448 in words is "one hundred thirty-five thousand, four hundred forty-eight".