133798 has 16 divisors (see below), whose sum is σ = 241920. Its totient is φ = 54216.

The previous prime is 133781. The next prime is 133801. The reversal of 133798 is 897331.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15 + ... + 517.

It is an arithmetic number, because the mean of its divisors is an integer number (15120).

2¹³³⁷⁹⁸ is an apocalyptic number.

133798 is a deficient number, since it is larger than the sum of its proper divisors (108122).

133798 is a wasteful number, since it uses less digits than its factorization.

133798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531.

The product of its digits is 4536, while the sum is 31.

The square root of 133798 is about 365.7840893205. The cubic root of 133798 is about 51.1465730936.

The spelling of 133798 in words is "one hundred thirty-three thousand, seven hundred ninety-eight".