135357685 has 4 divisors (see below), whose sum is σ = 162429228. Its totient is φ = 108286144.

The previous prime is 135357683. The next prime is 135357713. The reversal of 135357685 is 586753531.

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

It can be written as a sum of positive squares in 2 ways, for example, as 66699889 + 68657796 = 8167^2 + 8286^2 .

It is a cyclic number.

It is not a de Polignac number, because 135357685 - 2¹ = 135357683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135357683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13535764 + ... + 13535773.

It is an arithmetic number, because the mean of its divisors is an integer number (40607307).

Almost surely, 2^135357685 is an apocalyptic number.

It is an amenable number.

135357685 is a deficient number, since it is larger than the sum of its proper divisors (27071543).

135357685 is an equidigital number, since it uses as much as digits as its factorization.

135357685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27071542.

The product of its digits is 378000, while the sum is 43.

The square root of 135357685 is about 11634.3321681994. The cubic root of 135357685 is about 513.4454457532.

The spelling of 135357685 in words is "one hundred thirty-five million, three hundred fifty-seven thousand, six hundred eighty-five".