135810879 has 32 divisors (see below), whose sum is σ = 195502080. Its totient is φ = 83607552.

The previous prime is 135810877. The next prime is 135810893. The reversal of 135810879 is 978018531.

135810879 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 135810879 - 2¹ = 135810877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135810879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135810877) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 528319 + ... + 528575.

It is an arithmetic number, because the mean of its divisors is an integer number (6109440).

Almost surely, 2^135810879 is an apocalyptic number.

135810879 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

135810879 is a deficient number, since it is larger than the sum of its proper divisors (59691201).

135810879 is a wasteful number, since it uses less digits than its factorization.

135810879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479.

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 135810879 is about 11653.7924728390. The cubic root of 135810879 is about 514.0178333631.

The spelling of 135810879 in words is "one hundred thirty-five million, eight hundred ten thousand, eight hundred seventy-nine".