135289842 has 32 divisors (see below), whose sum is σ = 301579200. Its totient is φ = 40209408.

The previous prime is 135289831. The next prime is 135289853. The reversal of 135289842 is 248982531.

It is an interprime number because it is at equal distance from previous prime (135289831) and next prime (135289853).

It is a junction number, because it is equal to n+sod(n) for n = 135289794 and 135289803.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32967 + ... + 36842.

It is an arithmetic number, because the mean of its divisors is an integer number (9424350).

Almost surely, 2^135289842 is an apocalyptic number.

135289842 is an abundant number, since it is smaller than the sum of its proper divisors (166289358).

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

135289842 is a wasteful number, since it uses less digits than its factorization.

135289842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69850.

The product of its digits is 138240, while the sum is 42.

The square root of 135289842 is about 11631.4161648528. The cubic root of 135289842 is about 513.3596496132.

The spelling of 135289842 in words is "one hundred thirty-five million, two hundred eighty-nine thousand, eight hundred forty-two".