133750 has 20 divisors (see below), whose sum is σ = 253044. Its totient is φ = 53000.

The previous prime is 133733. The next prime is 133769. The reversal of 133750 is 57331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1197 + ... + 1303.

2¹³³⁷⁵⁰ is an apocalyptic number.

133750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133750 is a deficient number, since it is larger than the sum of its proper divisors (119294).

133750 is an equidigital number, since it uses as much as digits as its factorization.

133750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 315, while the sum is 19.

The square root of 133750 is about 365.7184709582. The cubic root of 133750 is about 51.1404560885.

The spelling of 133750 in words is "one hundred thirty-three thousand, seven hundred fifty".