4378135 has 4 divisors (see below), whose sum is σ = 5253768. Its totient is φ = 3502504.

The previous prime is 4378133. The next prime is 4378139. The reversal of 4378135 is 5318734.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5318734 = 2 ⋅2659367.

It is a cyclic number.

It is not a de Polignac number, because 4378135 - 2¹ = 4378133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4378097 and 4378106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4378133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437809 + ... + 437818.

It is an arithmetic number, because the mean of its divisors is an integer number (1313442).

Almost surely, 2^4378135 is an apocalyptic number.

4378135 is a deficient number, since it is larger than the sum of its proper divisors (875633).

4378135 is an equidigital number, since it uses as much as digits as its factorization.

4378135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875632.

The product of its digits is 10080, while the sum is 31.

The square root of 4378135 is about 2092.3993404702. The cubic root of 4378135 is about 163.5923720596.

The spelling of 4378135 in words is "four million, three hundred seventy-eight thousand, one hundred thirty-five".