494181 has 10 divisors (see below), whose sum is σ = 738342. Its totient is φ = 329400.

The previous prime is 494167. The next prime is 494191. The reversal of 494181 is 181494.

It can be written as a sum of positive squares in only one way, i.e., 443556 + 50625 = 666^2 + 225^2 .

It is not a de Polignac number, because 494181 - 2¹⁴ = 477797 is a prime.

It is a super-2 number, since 2×494181² = 488429721522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494101) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2970 + ... + 3131.

2⁴⁹⁴¹⁸¹ is an apocalyptic number.

It is an amenable number.

494181 is a deficient number, since it is larger than the sum of its proper divisors (244161).

494181 is an equidigital number, since it uses as much as digits as its factorization.

494181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6113 (or 6104 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 494181 is about 702.9800850664. The cubic root of 494181 is about 79.0609474665.

The spelling of 494181 in words is "four hundred ninety-four thousand, one hundred eighty-one".