135000442 has 16 divisors (see below), whose sum is σ = 206272512. Its totient is φ = 66247920.

The previous prime is 135000431. The next prime is 135000469. The reversal of 135000442 is 244000531.

135000442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73143 + ... + 74965.

It is an arithmetic number, because the mean of its divisors is an integer number (12892032).

Almost surely, 2^135000442 is an apocalyptic number.

135000442 is a deficient number, since it is larger than the sum of its proper divisors (71272070).

135000442 is a wasteful number, since it uses less digits than its factorization.

135000442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 135000442 is about 11618.9690592582. The cubic root of 135000442 is about 512.9933438612.

Adding to 135000442 its reverse (244000531), we get a palindrome (379000973).

The spelling of 135000442 in words is "one hundred thirty-five million, four hundred forty-two", and thus it is an aban number.