133948 has 6 divisors (see below), whose sum is σ = 234416. Its totient is φ = 66972.

The previous prime is 133919. The next prime is 133949. The reversal of 133948 is 849331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16740 + ... + 16747.

2¹³³⁹⁴⁸ is an apocalyptic number.

It is an amenable number.

133948 is a deficient number, since it is larger than the sum of its proper divisors (100468).

133948 is a wasteful number, since it uses less digits than its factorization.

133948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33491 (or 33489 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 133948 is about 365.9890708751. The cubic root of 133948 is about 51.1656793103.

It can be divided in two parts, 133 and 948, that added together give a triangular number (1081 = T₄₆).

The spelling of 133948 in words is "one hundred thirty-three thousand, nine hundred forty-eight".