133679723 has 8 divisors (see below), whose sum is σ = 136406016. Its totient is φ = 130977000.

The previous prime is 133679699. The next prime is 133679729. The reversal of 133679723 is 327976331.

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

It is a cyclic number.

It is not a de Polignac number, because 133679723 - 2¹⁸ = 133417579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133679729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5798 + ... + 17348.

It is an arithmetic number, because the mean of its divisors is an integer number (17050752).

Almost surely, 2^133679723 is an apocalyptic number.

133679723 is a deficient number, since it is larger than the sum of its proper divisors (2726293).

133679723 is a wasteful number, since it uses less digits than its factorization.

133679723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11785.

The product of its digits is 142884, while the sum is 41.

The square root of 133679723 is about 11561.9947673401. The cubic root of 133679723 is about 511.3149751531.

The spelling of 133679723 in words is "one hundred thirty-three million, six hundred seventy-nine thousand, seven hundred twenty-three".