135939018 has 8 divisors (see below), whose sum is σ = 271878048. Its totient is φ = 45313004.

The previous prime is 135939017. The next prime is 135939019. The reversal of 135939018 is 810939531.

It is an interprime number because it is at equal distance from previous prime (135939017) and next prime (135939019).

It is a sphenic number, since it is the product of 3 distinct primes.

135939018 is an admirable number.

It is a super-2 number, since 2×135939018² = 36958833229608648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135939017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11328246 + ... + 11328257.

It is an arithmetic number, because the mean of its divisors is an integer number (33984756).

Almost surely, 2^135939018 is an apocalyptic number.

135939018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

135939018 is a wasteful number, since it uses less digits than its factorization.

135939018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22656508.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 135939018 is about 11659.2889148524. The cubic root of 135939018 is about 514.1794429668.

The spelling of 135939018 in words is "one hundred thirty-five million, nine hundred thirty-nine thousand, eighteen".