491249 has 16 divisors (see below), whose sum is σ = 590976. Its totient is φ = 403200.

The previous prime is 491219. The next prime is 491251. The reversal of 491249 is 942194.

It is a cyclic number.

It is not a de Polignac number, because 491249 - 2⁸ = 490993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6884 + ... + 6954.

It is an arithmetic number, because the mean of its divisors is an integer number (36936).

2⁴⁹¹²⁴⁹ is an apocalyptic number.

It is an amenable number.

491249 is a deficient number, since it is larger than the sum of its proper divisors (99727).

491249 is a wasteful number, since it uses less digits than its factorization.

491249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136.

The product of its digits is 2592, while the sum is 29.

The square root of 491249 is about 700.8915750671. The cubic root of 491249 is about 78.9042797306.

The spelling of 491249 in words is "four hundred ninety-one thousand, two hundred forty-nine".