425145 has 16 divisors (see below), whose sum is σ = 777600. Its totient is φ = 194304.

The previous prime is 425123. The next prime is 425147. The reversal of 425145 is 541524.

It is not a de Polignac number, because 425145 - 2⁸ = 424889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

425145 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 425145.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1920 + ... + 2129.

It is an arithmetic number, because the mean of its divisors is an integer number (48600).

2⁴²⁵¹⁴⁵ is an apocalyptic number.

It is an amenable number.

425145 is a deficient number, since it is larger than the sum of its proper divisors (352455).

425145 is a wasteful number, since it uses less digits than its factorization.

425145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4064.

The product of its digits is 800, while the sum is 21.

The square root of 425145 is about 652.0314409597. The cubic root of 425145 is about 75.1932792583.

Adding to 425145 its reverse (541524), we get a palindrome (966669).

The spelling of 425145 in words is "four hundred twenty-five thousand, one hundred forty-five".