425143 has 4 divisors (see below), whose sum is σ = 426888. Its totient is φ = 423400.

The previous prime is 425123. The next prime is 425147. The reversal of 425143 is 341524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425143 is a prime.

It is an Ulam number.

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 425143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433 + ... + 1018.

It is an arithmetic number, because the mean of its divisors is an integer number (106722).

2⁴²⁵¹⁴³ is an apocalyptic number.

425143 is a deficient number, since it is larger than the sum of its proper divisors (1745).

425143 is a wasteful number, since it uses less digits than its factorization.

425143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744.

The product of its digits is 480, while the sum is 19.

The square root of 425143 is about 652.0299072895. The cubic root of 425143 is about 75.1931613481.

Adding to 425143 its reverse (341524), we get a palindrome (766667).

The spelling of 425143 in words is "four hundred twenty-five thousand, one hundred forty-three".