495942081 has 4 divisors (see below), whose sum is σ = 661256112. Its totient is φ = 330628052.

The previous prime is 495942067. The next prime is 495942089. The reversal of 495942081 is 180249594.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 495942081 - 2⁹ = 495941569 is a prime.

It is a super-2 number, since 2×495942081² = 491917095413221122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (495942089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82657011 + ... + 82657016.

It is an arithmetic number, because the mean of its divisors is an integer number (165314028).

Almost surely, 2^495942081 is an apocalyptic number.

It is an amenable number.

495942081 is a deficient number, since it is larger than the sum of its proper divisors (165314031).

495942081 is a wasteful number, since it uses less digits than its factorization.

495942081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165314030.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 495942081 is about 22269.7570934216. The cubic root of 495942081 is about 791.5475092953.

The spelling of 495942081 in words is "four hundred ninety-five million, nine hundred forty-two thousand, eighty-one".