42694135 has 8 divisors (see below), whose sum is σ = 55890576. Its totient is φ = 31050240.

The previous prime is 42694129. The next prime is 42694181. The reversal of 42694135 is 53149624.

It is a happy number.

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

It is not a de Polignac number, because 42694135 - 2¹³ = 42685943 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42694135.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388074 + ... + 388183.

It is an arithmetic number, because the mean of its divisors is an integer number (6986322).

Almost surely, 2^42694135 is an apocalyptic number.

42694135 is a deficient number, since it is larger than the sum of its proper divisors (13196441).

42694135 is a wasteful number, since it uses less digits than its factorization.

42694135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776273.

The product of its digits is 25920, while the sum is 34.

The square root of 42694135 is about 6534.0749153954. The cubic root of 42694135 is about 349.5071566815.

The spelling of 42694135 in words is "forty-two million, six hundred ninety-four thousand, one hundred thirty-five".