135442518 has 16 divisors (see below), whose sum is σ = 277185216. Its totient is φ = 44097480.

The previous prime is 135442513. The next prime is 135442523. The reversal of 135442518 is 815244531.

135442518 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (135442513) and next prime (135442523).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135442513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262228 + ... + 262743.

It is an arithmetic number, because the mean of its divisors is an integer number (17324076).

Almost surely, 2^135442518 is an apocalyptic number.

135442518 is an abundant number, since it is smaller than the sum of its proper divisors (141742698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135442518 is a wasteful number, since it uses less digits than its factorization.

135442518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525019.

The product of its digits is 19200, while the sum is 33.

The square root of 135442518 is about 11637.9774015935. The cubic root of 135442518 is about 513.5526875920.

The spelling of 135442518 in words is "one hundred thirty-five million, four hundred forty-two thousand, five hundred eighteen".