133763 has 8 divisors (see below), whose sum is σ = 155232. Its totient is φ = 112896.

The previous prime is 133733. The next prime is 133769. The reversal of 133763 is 367331.

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

It is not a de Polignac number, because 133763 - 2¹⁰ = 132739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581 + ... + 777.

It is an arithmetic number, because the mean of its divisors is an integer number (19404).

2¹³³⁷⁶³ is an apocalyptic number.

133763 is a deficient number, since it is larger than the sum of its proper divisors (21469).

133763 is an equidigital number, since it uses as much as digits as its factorization.

133763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301.

The product of its digits is 1134, while the sum is 23.

The square root of 133763 is about 365.7362437604. The cubic root of 133763 is about 51.1421129219.

The spelling of 133763 in words is "one hundred thirty-three thousand, seven hundred sixty-three".