494121 has 4 divisors (see below), whose sum is σ = 658832. Its totient is φ = 329412.

The previous prime is 494107. The next prime is 494129. The reversal of 494121 is 121494.

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 not a de Polignac number, because 494121 - 2⁷ = 493993 is a prime.

It is a D-number.

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

It is a Duffinian number.

It is a Curzon number.

494121 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (494129) 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, 82351 + ... + 82356.

It is an arithmetic number, because the mean of its divisors is an integer number (164708).

2⁴⁹⁴¹²¹ is an apocalyptic number.

It is an amenable number.

494121 is a deficient number, since it is larger than the sum of its proper divisors (164711).

494121 is a wasteful number, since it uses less digits than its factorization.

494121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164710.

The product of its digits is 288, while the sum is 21.

The square root of 494121 is about 702.9374083089. The cubic root of 494121 is about 79.0577476613.

The spelling of 494121 in words is "four hundred ninety-four thousand, one hundred twenty-one".