135321673 has 8 divisors (see below), whose sum is σ = 141998400. Its totient is φ = 128711088.

The previous prime is 135321671. The next prime is 135321677. The reversal of 135321673 is 376123531.

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 135321673 - 2¹ = 135321671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135321671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12318 + ... + 20551.

It is an arithmetic number, because the mean of its divisors is an integer number (17749800).

Almost surely, 2^135321673 is an apocalyptic number.

It is an amenable number.

135321673 is a deficient number, since it is larger than the sum of its proper divisors (6676727).

135321673 is a wasteful number, since it uses less digits than its factorization.

135321673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33071.

The product of its digits is 11340, while the sum is 31.

The square root of 135321673 is about 11632.7844044322. The cubic root of 135321673 is about 513.3999075497.

The spelling of 135321673 in words is "one hundred thirty-five million, three hundred twenty-one thousand, six hundred seventy-three".