135155839 has 16 divisors (see below), whose sum is σ = 167157760. Its totient is φ = 106414560.

The previous prime is 135155833. The next prime is 135155849. The reversal of 135155839 is 938551531.

It is not a de Polignac number, because 135155839 - 2⁷ = 135155711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135155833) 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 15 ways as a sum of consecutive naturals, for example, 15682 + ... + 22720.

It is an arithmetic number, because the mean of its divisors is an integer number (10447360).

Almost surely, 2^135155839 is an apocalyptic number.

135155839 is a deficient number, since it is larger than the sum of its proper divisors (32001921).

135155839 is a wasteful number, since it uses less digits than its factorization.

135155839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7270.

The product of its digits is 81000, while the sum is 40.

The square root of 135155839 is about 11625.6543471755. The cubic root of 135155839 is about 513.1901013872.

The spelling of 135155839 in words is "one hundred thirty-five million, one hundred fifty-five thousand, eight hundred thirty-nine".