135145785 has 16 divisors (see below), whose sum is σ = 218335104. Its totient is φ = 71377152.

The previous prime is 135145783. The next prime is 135145819. The reversal of 135145785 is 587541531.

It is not a de Polignac number, because 135145785 - 2¹ = 135145783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135145783) 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, 42192 + ... + 45281.

It is an arithmetic number, because the mean of its divisors is an integer number (13645944).

Almost surely, 2^135145785 is an apocalyptic number.

135145785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135145785 is a deficient number, since it is larger than the sum of its proper divisors (83189319).

135145785 is a wasteful number, since it uses less digits than its factorization.

135145785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87584.

The product of its digits is 84000, while the sum is 39.

The square root of 135145785 is about 11625.2219333654. The cubic root of 135145785 is about 513.1773759752.

The spelling of 135145785 in words is "one hundred thirty-five million, one hundred forty-five thousand, seven hundred eighty-five".