133670 has 8 divisors (see below), whose sum is σ = 240624. Its totient is φ = 53464.

The previous prime is 133669. The next prime is 133673. The reversal of 133670 is 76331.

133670 is nontrivially palindromic in base 9.

133670 is an esthetic number in base 12, because in such base its adjacent digits differ by 1.

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

It is a Curzon number.

It is a nialpdrome in base 12.

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133673) 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, 6674 + ... + 6693.

It is an arithmetic number, because the mean of its divisors is an integer number (30078).

2¹³³⁶⁷⁰ is an apocalyptic number.

133670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133670 is a deficient number, since it is larger than the sum of its proper divisors (106954).

133670 is a wasteful number, since it uses less digits than its factorization.

133670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13374.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 133670 is about 365.6090808500. The cubic root of 133670 is about 51.1302578269.

The spelling of 133670 in words is "one hundred thirty-three thousand, six hundred seventy".