395253161 has 4 divisors (see below), whose sum is σ = 404893524. Its totient is φ = 385612800.

The previous prime is 395253149. The next prime is 395253163. The reversal of 395253161 is 161352593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161352593 = 17 ⋅9491329.

It can be written as a sum of positive squares in 2 ways, for example, as 104755225 + 290497936 = 10235^2 + 17044^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-395253161 is a prime.

It is a super-2 number, since 2×395253161² = 312450122560983842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395253163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4820120 + ... + 4820201.

It is an arithmetic number, because the mean of its divisors is an integer number (101223381).

Almost surely, 2^395253161 is an apocalyptic number.

It is an amenable number.

395253161 is a deficient number, since it is larger than the sum of its proper divisors (9640363).

395253161 is an equidigital number, since it uses as much as digits as its factorization.

395253161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9640362.

The product of its digits is 24300, while the sum is 35.

The square root of 395253161 is about 19880.9748503437. The cubic root of 395253161 is about 733.8801098277.

The spelling of 395253161 in words is "three hundred ninety-five million, two hundred fifty-three thousand, one hundred sixty-one".