491459 has 4 divisors (see below), whose sum is σ = 497760. Its totient is φ = 485160.

The previous prime is 491429. The next prime is 491461. The reversal of 491459 is 954194.

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 491459 - 2¹² = 487363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491429) 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, 3032 + ... + 3189.

It is an arithmetic number, because the mean of its divisors is an integer number (124440).

2⁴⁹¹⁴⁵⁹ is an apocalyptic number.

491459 is a deficient number, since it is larger than the sum of its proper divisors (6301).

491459 is an equidigital number, since it uses as much as digits as its factorization.

491459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6300.

The product of its digits is 6480, while the sum is 32.

The square root of 491459 is about 701.0413682515. The cubic root of 491459 is about 78.9155215096.

The spelling of 491459 in words is "four hundred ninety-one thousand, four hundred fifty-nine".