425105161 has 8 divisors (see below), whose sum is σ = 458495240. Its totient is φ = 391813632.

The previous prime is 425105143. The next prime is 425105243. The reversal of 425105161 is 161501524.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15649936 + 409455225 = 3956^2 + 20235^2 .

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 425105161 - 2¹¹ = 425103113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425105861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15546 + ... + 33043.

It is an arithmetic number, because the mean of its divisors is an integer number (57311905).

Almost surely, 2^425105161 is an apocalyptic number.

It is an amenable number.

425105161 is a deficient number, since it is larger than the sum of its proper divisors (33390079).

425105161 is a wasteful number, since it uses less digits than its factorization.

425105161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49275.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 425105161 is about 20618.0784992200. The cubic root of 425105161 is about 751.9093047640.

Adding to 425105161 its reverse (161501524), we get a palindrome (586606685).

The spelling of 425105161 in words is "four hundred twenty-five million, one hundred five thousand, one hundred sixty-one".