135423733 has 4 divisors (see below), whose sum is σ = 135747360. Its totient is φ = 135100108.

The previous prime is 135423719. The next prime is 135423749. The reversal of 135423733 is 337324531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135423733 - 2¹³ = 135415541 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135423695 and 135423704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135424733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161185 + ... + 162022.

It is an arithmetic number, because the mean of its divisors is an integer number (33936840).

Almost surely, 2^135423733 is an apocalyptic number.

It is an amenable number.

135423733 is a deficient number, since it is larger than the sum of its proper divisors (323627).

135423733 is an equidigital number, since it uses as much as digits as its factorization.

135423733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323626.

The product of its digits is 22680, while the sum is 31.

The square root of 135423733 is about 11637.1703175643. The cubic root of 135423733 is about 513.5289443505.

The spelling of 135423733 in words is "one hundred thirty-five million, four hundred twenty-three thousand, seven hundred thirty-three".