133826 has 24 divisors (see below), whose sum is σ = 255360. Its totient is φ = 51480.

The previous prime is 133813. The next prime is 133831. The reversal of 133826 is 628331.

It is a plaindrome in base 15.

It is a nialpdrome in base 12.

It is an unprimeable number.

133826 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1655 + ... + 1733.

It is an arithmetic number, because the mean of its divisors is an integer number (10640).

2¹³³⁸²⁶ is an apocalyptic number.

133826 is a deficient number, since it is larger than the sum of its proper divisors (121534).

133826 is a wasteful number, since it uses less digits than its factorization.

133826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 99 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 133826 is about 365.8223612629. The cubic root of 133826 is about 51.1501406710.

It can be divided in two parts, 133 and 826, that added together give a palindrome (959).

The spelling of 133826 in words is "one hundred thirty-three thousand, eight hundred twenty-six".