135105807 has 4 divisors (see below), whose sum is σ = 180141080. Its totient is φ = 90070536.

The previous prime is 135105791. The next prime is 135105847. The reversal of 135105807 is 708501531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 708501531 = 3 ⋅236167177.

It is not a de Polignac number, because 135105807 - 2⁴ = 135105791 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 (135105847) 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, 22517632 + ... + 22517637.

It is an arithmetic number, because the mean of its divisors is an integer number (45035270).

Almost surely, 2^135105807 is an apocalyptic number.

135105807 is a deficient number, since it is larger than the sum of its proper divisors (45035273).

135105807 is an equidigital number, since it uses as much as digits as its factorization.

135105807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45035272.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 135105807 is about 11623.5023551424. The cubic root of 135105807 is about 513.1267693200.

The spelling of 135105807 in words is "one hundred thirty-five million, one hundred five thousand, eight hundred seven".