162445225 has 6 divisors (see below), whose sum is σ = 201432110. Its totient is φ = 129956160.

The previous prime is 162445223. The next prime is 162445229. The reversal of 162445225 is 522544261.

It can be written as a sum of positive squares in 3 ways, for example, as 31663129 + 130782096 = 5627^2 + 11436^2 .

It is not a de Polignac number, because 162445225 - 2¹ = 162445223 is a prime.

It is a super-2 number, since 2×162445225² = 52776902250601250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (162445223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3248880 + ... + 3248929.

Almost surely, 2^162445225 is an apocalyptic number.

It is an amenable number.

162445225 is a deficient number, since it is larger than the sum of its proper divisors (38986885).

162445225 is an equidigital number, since it uses as much as digits as its factorization.

162445225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6497819 (or 6497814 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 162445225 is about 12745.4001506426. The cubic root of 162445225 is about 545.6351207476.

Adding to 162445225 its reverse (522544261), we get a palindrome (684989486).

The spelling of 162445225 in words is "one hundred sixty-two million, four hundred forty-five thousand, two hundred twenty-five".