133679 has 12 divisors (see below), whose sum is σ = 166896. Its totient is φ = 104832.

The previous prime is 133673. The next prime is 133691. The reversal of 133679 is 976331.

It is a de Polignac number, because none of the positive numbers 2^k-133679 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

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 11 ways as a sum of consecutive naturals, for example, 1127 + ... + 1239.

It is an arithmetic number, because the mean of its divisors is an integer number (13908).

2¹³³⁶⁷⁹ is an apocalyptic number.

133679 is a deficient number, since it is larger than the sum of its proper divisors (33217).

133679 is a wasteful number, since it uses less digits than its factorization.

133679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 133 counting only the distinct ones).

The product of its digits is 3402, while the sum is 29.

The square root of 133679 is about 365.6213888711. The cubic root of 133679 is about 51.1314053344.

The spelling of 133679 in words is "one hundred thirty-three thousand, six hundred seventy-nine".