133396 has 6 divisors (see below), whose sum is σ = 233450. Its totient is φ = 66696.

The previous prime is 133391. The next prime is 133403. The reversal of 133396 is 693331.

It can be written as a sum of positive squares in only one way, i.e., 132496 + 900 = 364^2 + 30^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 133396.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133391) 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 as a sum of consecutive naturals, namely, 16671 + ... + 16678.

2¹³³³⁹⁶ is an apocalyptic number.

It is an amenable number.

133396 is a deficient number, since it is larger than the sum of its proper divisors (100054).

133396 is a wasteful number, since it uses less digits than its factorization.

133396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33353 (or 33351 counting only the distinct ones).

The product of its digits is 1458, while the sum is 25.

The square root of 133396 is about 365.2341714572. The cubic root of 133396 is about 51.0952979156.

It can be divided in two parts, 133 and 396, that added together give a square (529 = 23²).

The spelling of 133396 in words is "one hundred thirty-three thousand, three hundred ninety-six".