494158861 has 8 divisors (see below), whose sum is σ = 565750080. Its totient is φ = 422816928.

The previous prime is 494158789. The next prime is 494158867. The reversal of 494158861 is 168851494.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 494158861 - 2¹¹ = 494156813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494158867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58051 + ... + 66016.

It is an arithmetic number, because the mean of its divisors is an integer number (70718760).

Almost surely, 2^494158861 is an apocalyptic number.

It is an amenable number.

494158861 is a deficient number, since it is larger than the sum of its proper divisors (71591219).

494158861 is a wasteful number, since it uses less digits than its factorization.

494158861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124643.

The product of its digits is 276480, while the sum is 46.

The square root of 494158861 is about 22229.6842307757. The cubic root of 494158861 is about 790.5976682183.

The spelling of 494158861 in words is "four hundred ninety-four million, one hundred fifty-eight thousand, eight hundred sixty-one".