133802 has 8 divisors (see below), whose sum is σ = 202500. Its totient is φ = 66304.

The previous prime is 133801. The next prime is 133811. The reversal of 133802 is 208331.

It can be written as a sum of positive squares in 2 ways, for example, as 130321 + 3481 = 361^2 + 59^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 9.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (133801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74 + ... + 522.

2¹³³⁸⁰² is an apocalyptic number.

133802 is a deficient number, since it is larger than the sum of its proper divisors (68698).

133802 is a wasteful number, since it uses less digits than its factorization.

133802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 133802 is about 365.7895569860. The cubic root of 133802 is about 51.1470827780.

Subtracting 133802 from its reverse (208331), we obtain a square (74529 = 273²).

The spelling of 133802 in words is "one hundred thirty-three thousand, eight hundred two".