425181 has 8 divisors (see below), whose sum is σ = 570240. Its totient is φ = 281792.

The previous prime is 425149. The next prime is 425189. The reversal of 425181 is 181524.

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

It is a cyclic number.

It is not a de Polignac number, because 425181 - 2⁵ = 425149 is a prime.

It is a super-2 number, since 2×425181² = 361557765522, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 425181.

It is not an unprimeable number, because it can be changed into a prime (425189) 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 7 ways as a sum of consecutive naturals, for example, 421 + ... + 1013.

It is an arithmetic number, because the mean of its divisors is an integer number (71280).

2⁴²⁵¹⁸¹ is an apocalyptic number.

It is an amenable number.

425181 is a deficient number, since it is larger than the sum of its proper divisors (145059).

425181 is a wasteful number, since it uses less digits than its factorization.

425181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835.

The product of its digits is 320, while the sum is 21.

The square root of 425181 is about 652.0590464061. The cubic root of 425181 is about 75.1954015786.

It can be divided in two parts, 425 and 181, that added together give a palindrome (606).

The spelling of 425181 in words is "four hundred twenty-five thousand, one hundred eighty-one".