135599807 has 6 divisors (see below), whose sum is σ = 157738608. Its totient is φ = 116228364.

The previous prime is 135599773. The next prime is 135599813. The reversal of 135599807 is 708995531.

135599807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135599807 - 2¹² = 135595711 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 (135599207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1383623 + ... + 1383720.

It is an arithmetic number, because the mean of its divisors is an integer number (26289768).

Almost surely, 2^135599807 is an apocalyptic number.

135599807 is a deficient number, since it is larger than the sum of its proper divisors (22138801).

135599807 is an equidigital number, since it uses as much as digits as its factorization.

135599807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767357 (or 2767350 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 47.

The square root of 135599807 is about 11644.7330154023. The cubic root of 135599807 is about 513.7514064327.

The spelling of 135599807 in words is "one hundred thirty-five million, five hundred ninety-nine thousand, eight hundred seven".