425215161 has 12 divisors (see below), whose sum is σ = 701942592. Its totient is φ = 242980056.

The previous prime is 425215159. The next prime is 425215163. The reversal of 425215161 is 161512524.

It is an interprime number because it is at equal distance from previous prime (425215159) and next prime (425215163).

It is not a de Polignac number, because 425215161 - 2¹ = 425215159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425215163) 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 11 ways as a sum of consecutive naturals, for example, 3374661 + ... + 3374786.

It is an arithmetic number, because the mean of its divisors is an integer number (58495216).

Almost surely, 2^425215161 is an apocalyptic number.

It is an amenable number.

425215161 is a deficient number, since it is larger than the sum of its proper divisors (276727431).

425215161 is a wasteful number, since it uses less digits than its factorization.

425215161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6749460 (or 6749457 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 425215161 is about 20620.7458885463. The cubic root of 425215161 is about 751.9741537301.

Adding to 425215161 its reverse (161512524), we get a palindrome (586727685).

The spelling of 425215161 in words is "four hundred twenty-five million, two hundred fifteen thousand, one hundred sixty-one".