133736 has 16 divisors (see below), whose sum is σ = 255300. Its totient is φ = 65664.

The previous prime is 133733. The next prime is 133769. The reversal of 133736 is 637331.

It can be written as a sum of positive squares in 2 ways, for example, as 122500 + 11236 = 350^2 + 106^2 .

It is not an unprimeable number, because it can be changed into a prime (133733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470 + ... + 698.

2¹³³⁷³⁶ is an apocalyptic number.

It is an amenable number.

133736 is a deficient number, since it is larger than the sum of its proper divisors (121564).

133736 is a wasteful number, since it uses less digits than its factorization.

133736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 304 counting only the distinct ones).

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

The square root of 133736 is about 365.6993300513. The cubic root of 133736 is about 51.1386716863.

The spelling of 133736 in words is "one hundred thirty-three thousand, seven hundred thirty-six".