395681145 has 16 divisors (see below), whose sum is σ = 650201280. Its totient is φ = 205326144.

The previous prime is 395681131. The next prime is 395681147. The reversal of 395681145 is 541186593.

It is not a de Polignac number, because 395681145 - 2⁵ = 395681113 is a prime.

It is a super-2 number, since 2×395681145² = 313127137017022050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 395681097 and 395681106.

It is not an unprimeable number, because it can be changed into a prime (395681147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355915 + ... + 357024.

It is an arithmetic number, because the mean of its divisors is an integer number (40637580).

Almost surely, 2^395681145 is an apocalyptic number.

It is an amenable number.

395681145 is a deficient number, since it is larger than the sum of its proper divisors (254520135).

395681145 is a wasteful number, since it uses less digits than its factorization.

395681145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712984.

The product of its digits is 129600, while the sum is 42.

The square root of 395681145 is about 19891.7355954678. The cubic root of 395681145 is about 734.1448984727.

The spelling of 395681145 in words is "three hundred ninety-five million, six hundred eighty-one thousand, one hundred forty-five".