395905135 has 4 divisors (see below), whose sum is σ = 475086168. Its totient is φ = 316724104.

The previous prime is 395905121. The next prime is 395905151. The reversal of 395905135 is 531509593.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 395905135 - 2²³ = 387516527 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39590509 + ... + 39590518.

It is an arithmetic number, because the mean of its divisors is an integer number (118771542).

Almost surely, 2^395905135 is an apocalyptic number.

395905135 is a deficient number, since it is larger than the sum of its proper divisors (79181033).

395905135 is an equidigital number, since it uses as much as digits as its factorization.

395905135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79181032.

The product of its (nonzero) digits is 91125, while the sum is 40.

The square root of 395905135 is about 19897.3650265557. The cubic root of 395905135 is about 734.2834023315.

The spelling of 395905135 in words is "three hundred ninety-five million, nine hundred five thousand, one hundred thirty-five".