162340225 has 12 divisors (see below), whose sum is σ = 213143724. Its totient is φ = 122232320.

The previous prime is 162340223. The next prime is 162340253. The reversal of 162340225 is 522043261.

It can be written as a sum of positive squares in 6 ways, for example, as 5489649 + 156850576 = 2343^2 + 12524^2 .

It is not a de Polignac number, because 162340225 - 2¹ = 162340223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 162340225.

It is not an unprimeable number, because it can be changed into a prime (162340223) 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, 190564 + ... + 191413.

It is an arithmetic number, because the mean of its divisors is an integer number (17761977).

Almost surely, 2^162340225 is an apocalyptic number.

It is an amenable number.

162340225 is a deficient number, since it is larger than the sum of its proper divisors (50803499).

162340225 is a wasteful number, since it uses less digits than its factorization.

162340225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382004 (or 381999 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 162340225 is about 12741.2803516758. The cubic root of 162340225 is about 545.5175343714.

Adding to 162340225 its reverse (522043261), we get a palindrome (684383486).

The spelling of 162340225 in words is "one hundred sixty-two million, three hundred forty thousand, two hundred twenty-five".