425135443 has 4 divisors (see below), whose sum is σ = 425181960. Its totient is φ = 425088928.

The previous prime is 425135411. The next prime is 425135449. The reversal of 425135443 is 344531524.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 425135443 - 2⁵ = 425135411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425135449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4513 + ... + 29506.

It is an arithmetic number, because the mean of its divisors is an integer number (106295490).

Almost surely, 2^425135443 is an apocalyptic number.

425135443 is a deficient number, since it is larger than the sum of its proper divisors (46517).

425135443 is a wasteful number, since it uses less digits than its factorization.

425135443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46516.

The product of its digits is 28800, while the sum is 31.

The square root of 425135443 is about 20618.8128416745. The cubic root of 425135443 is about 751.9271582106.

Adding to 425135443 its reverse (344531524), we get a palindrome (769666967).

The spelling of 425135443 in words is "four hundred twenty-five million, one hundred thirty-five thousand, four hundred forty-three".