135431842 has 32 divisors (see below), whose sum is σ = 250612992. Its totient is φ = 53452224.

The previous prime is 135431789. The next prime is 135431851. The reversal of 135431842 is 248134531.

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, 137283 + ... + 138265.

It is an arithmetic number, because the mean of its divisors is an integer number (7831656).

Almost surely, 2^135431842 is an apocalyptic number.

135431842 is a deficient number, since it is larger than the sum of its proper divisors (115181150).

135431842 is a wasteful number, since it uses less digits than its factorization.

135431842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762.

The product of its digits is 11520, while the sum is 31.

The square root of 135431842 is about 11637.5187217895. The cubic root of 135431842 is about 513.5391939648.

The spelling of 135431842 in words is "one hundred thirty-five million, four hundred thirty-one thousand, eight hundred forty-two".