135355673 has 4 divisors (see below), whose sum is σ = 140023140. Its totient is φ = 130688208.

The previous prime is 135355669. The next prime is 135355691. The reversal of 135355673 is 376553531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 376553531 = 4157 ⋅90583.

It can be written as a sum of positive squares in 2 ways, for example, as 22401289 + 112954384 = 4733^2 + 10628^2 .

It is a cyclic number.

It is not a de Polignac number, because 135355673 - 2² = 135355669 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135355603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2333690 + ... + 2333747.

It is an arithmetic number, because the mean of its divisors is an integer number (35005785).

Almost surely, 2^135355673 is an apocalyptic number.

It is an amenable number.

135355673 is a deficient number, since it is larger than the sum of its proper divisors (4667467).

135355673 is an equidigital number, since it uses as much as digits as its factorization.

135355673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4667466.

The product of its digits is 141750, while the sum is 38.

The square root of 135355673 is about 11634.2456996575. The cubic root of 135355673 is about 513.4429017347.

The spelling of 135355673 in words is "one hundred thirty-five million, three hundred fifty-five thousand, six hundred seventy-three".