162108725 has 12 divisors (see below), whose sum is σ = 201250884. Its totient is φ = 129534720.

The previous prime is 162108707. The next prime is 162108743. The reversal of 162108725 is 527801261.

162108725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (162108707) and next prime (162108743).

It can be written as a sum of positive squares in 6 ways, for example, as 7006609 + 155102116 = 2647^2 + 12454^2 .

It is not a de Polignac number, because 162108725 - 2⁸ = 162108469 is a prime.

It is a super-2 number, since 2×162108725² = 52558477442251250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 162108691 and 162108700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21107 + ... + 27743.

It is an arithmetic number, because the mean of its divisors is an integer number (16770907).

Almost surely, 2^162108725 is an apocalyptic number.

It is an amenable number.

162108725 is a deficient number, since it is larger than the sum of its proper divisors (39142159).

162108725 is an equidigital number, since it uses as much as digits as its factorization.

162108725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7624 (or 7619 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 162108725 is about 12732.1924663429. The cubic root of 162108725 is about 545.2581051673.

Adding to 162108725 its reverse (527801261), we get a palindrome (689909986).

The spelling of 162108725 in words is "one hundred sixty-two million, one hundred eight thousand, seven hundred twenty-five".