135650857 has 4 divisors (see below), whose sum is σ = 136435140. Its totient is φ = 134866576.

The previous prime is 135650807. The next prime is 135650869. The reversal of 135650857 is 758056531.

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 125081856 + 10569001 = 11184^2 + 3251^2 .

It is a cyclic number.

It is not a de Polignac number, because 135650857 - 2⁷ = 135650729 is a prime.

It is a Smith number, since the sum of its digits (40) 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 not an unprimeable number, because it can be changed into a prime (135650807) 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, 391882 + ... + 392227.

It is an arithmetic number, because the mean of its divisors is an integer number (34108785).

Almost surely, 2^135650857 is an apocalyptic number.

It is an amenable number.

135650857 is a deficient number, since it is larger than the sum of its proper divisors (784283).

135650857 is an equidigital number, since it uses as much as digits as its factorization.

135650857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784282.

The product of its (nonzero) digits is 126000, while the sum is 40.

The square root of 135650857 is about 11646.9247872561. The cubic root of 135650857 is about 513.8158699431.

The spelling of 135650857 in words is "one hundred thirty-five million, six hundred fifty thousand, eight hundred fifty-seven".