135812743 has 4 divisors (see below), whose sum is σ = 148159368. Its totient is φ = 123466120.

The previous prime is 135812731. The next prime is 135812759. The reversal of 135812743 is 347218531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135812743 - 2⁹ = 135812231 is a prime.

It is a super-2 number, since 2×135812743² = 36890202322368098, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135812699 and 135812708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135812783) 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, 6173296 + ... + 6173317.

It is an arithmetic number, because the mean of its divisors is an integer number (37039842).

Almost surely, 2^135812743 is an apocalyptic number.

135812743 is a deficient number, since it is larger than the sum of its proper divisors (12346625).

135812743 is a wasteful number, since it uses less digits than its factorization.

135812743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12346624.

The product of its digits is 20160, while the sum is 34.

The square root of 135812743 is about 11653.8724465304. The cubic root of 135812743 is about 514.0201849785.

The spelling of 135812743 in words is "one hundred thirty-five million, eight hundred twelve thousand, seven hundred forty-three".