162389225 has 6 divisors (see below), whose sum is σ = 201362670. Its totient is φ = 129911360.

The previous prime is 162389221. The next prime is 162389231. The reversal of 162389225 is 522983261.

It can be written as a sum of positive squares in 3 ways, for example, as 1708249 + 160680976 = 1307^2 + 12676^2 .

It is not a de Polignac number, because 162389225 - 2² = 162389221 is a prime.

It is a super-2 number, since 2×162389225² = 52740520792201250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (162389221) 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, 3247760 + ... + 3247809.

It is an arithmetic number, because the mean of its divisors is an integer number (33560445).

Almost surely, 2^162389225 is an apocalyptic number.

It is an amenable number.

162389225 is a deficient number, since it is larger than the sum of its proper divisors (38973445).

162389225 is an equidigital number, since it uses as much as digits as its factorization.

162389225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6495579 (or 6495574 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 162389225 is about 12743.2030902752. The cubic root of 162389225 is about 545.5724143213.

The spelling of 162389225 in words is "one hundred sixty-two million, three hundred eighty-nine thousand, two hundred twenty-five".