135742745 has 16 divisors (see below), whose sum is σ = 172385280. Its totient is φ = 102326400.

The previous prime is 135742741. The next prime is 135742753. The reversal of 135742745 is 547247531.

It is not a de Polignac number, because 135742745 - 2² = 135742741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135742699 and 135742708.

It is not an unprimeable number, because it can be changed into a prime (135742741) 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 15 ways as a sum of consecutive naturals, for example, 14405 + ... + 21885.

It is an arithmetic number, because the mean of its divisors is an integer number (10774080).

Almost surely, 2^135742745 is an apocalyptic number.

It is an amenable number.

135742745 is a deficient number, since it is larger than the sum of its proper divisors (36642535).

135742745 is a wasteful number, since it uses less digits than its factorization.

135742745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7696.

The product of its digits is 117600, while the sum is 38.

The square root of 135742745 is about 11650.8688517209. The cubic root of 135742745 is about 513.9318609933.

The spelling of 135742745 in words is "one hundred thirty-five million, seven hundred forty-two thousand, seven hundred forty-five".