494158271 has 4 divisors (see below), whose sum is σ = 495845112. Its totient is φ = 492471432.

The previous prime is 494158267. The next prime is 494158307. The reversal of 494158271 is 172851494.

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 494158271 - 2² = 494158267 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 (494158211) 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, 842981 + ... + 843566.

It is an arithmetic number, because the mean of its divisors is an integer number (123961278).

Almost surely, 2^494158271 is an apocalyptic number.

494158271 is a deficient number, since it is larger than the sum of its proper divisors (1686841).

494158271 is a wasteful number, since it uses less digits than its factorization.

494158271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686840.

The product of its digits is 80640, while the sum is 41.

The square root of 494158271 is about 22229.6709602279. The cubic root of 494158271 is about 790.5973535740.

The spelling of 494158271 in words is "four hundred ninety-four million, one hundred fifty-eight thousand, two hundred seventy-one".