495905191 has 12 divisors (see below), whose sum is σ = 527287320. Its totient is φ = 465827040.

The previous prime is 495905177. The next prime is 495905219. The reversal of 495905191 is 191509594.

It is not a de Polignac number, because 495905191 - 2⁵ = 495905159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495905101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33456 + ... + 45946.

It is an arithmetic number, because the mean of its divisors is an integer number (43940610).

Almost surely, 2^495905191 is an apocalyptic number.

495905191 is a deficient number, since it is larger than the sum of its proper divisors (31382129).

495905191 is a wasteful number, since it uses less digits than its factorization.

495905191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12594 (or 12557 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 43.

The square root of 495905191 is about 22268.9288247100. The cubic root of 495905191 is about 791.5278827349.

The spelling of 495905191 in words is "four hundred ninety-five million, nine hundred five thousand, one hundred ninety-one".