42005135234 has 8 divisors (see below), whose sum is σ = 63337586688. Its totient is φ = 20892606340.

The previous prime is 42005135147. The next prime is 42005135257. The reversal of 42005135234 is 43253150024.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 42005135197 and 42005135206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54980162 + ... + 54980925.

It is an arithmetic number, because the mean of its divisors is an integer number (7917198336).

Almost surely, 2^42005135234 is an apocalyptic number.

42005135234 is a deficient number, since it is larger than the sum of its proper divisors (21332451454).

42005135234 is a wasteful number, since it uses less digits than its factorization.

42005135234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109961280.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 42005135234 its reverse (43253150024), we get a palindrome (85258285258).

The spelling of 42005135234 in words is "forty-two billion, five million, one hundred thirty-five thousand, two hundred thirty-four".