162443425 has 6 divisors (see below), whose sum is σ = 201429878. Its totient is φ = 129954720.

The previous prime is 162443419. The next prime is 162443453. The reversal of 162443425 is 524344261.

It can be written as a sum of positive squares in 3 ways, for example, as 11350161 + 151093264 = 3369^2 + 12292^2 .

It is not a de Polignac number, because 162443425 - 2¹⁹ = 161919137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 3248844 + ... + 3248893.

Almost surely, 2^162443425 is an apocalyptic number.

It is an amenable number.

162443425 is a deficient number, since it is larger than the sum of its proper divisors (38986453).

162443425 is an equidigital number, since it uses as much as digits as its factorization.

162443425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6497747 (or 6497742 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 162443425 is about 12745.3295367362. The cubic root of 162443425 is about 545.6331054081.

Adding to 162443425 its reverse (524344261), we get a palindrome (686787686).

The spelling of 162443425 in words is "one hundred sixty-two million, four hundred forty-three thousand, four hundred twenty-five".