494161 has 4 divisors (see below), whose sum is σ = 502324. Its totient is φ = 486000.

The previous prime is 494147. The next prime is 494167. The reversal of 494161 is 161494.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161494 = 2 ⋅80747.

It can be written as a sum of positive squares in 2 ways, for example, as 286225 + 207936 = 535^2 + 456^2 .

It is a 5-Lehmer number, since φ(494161) divides (494161-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 494161 - 2⁵ = 494129 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3990 + ... + 4111.

It is an arithmetic number, because the mean of its divisors is an integer number (125581).

2⁴⁹⁴¹⁶¹ is an apocalyptic number.

It is an amenable number.

494161 is a deficient number, since it is larger than the sum of its proper divisors (8163).

494161 is an equidigital number, since it uses as much as digits as its factorization.

494161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8162.

The product of its digits is 864, while the sum is 25.

The square root of 494161 is about 702.9658597685. The cubic root of 494161 is about 79.0598808935.

It can be divided in two parts, 4941 and 61, that multiplied together give a square (301401 = 549²).

The spelling of 494161 in words is "four hundred ninety-four thousand, one hundred sixty-one".