491126 has 4 divisors (see below), whose sum is σ = 736692. Its totient is φ = 245562.

The previous prime is 491083. The next prime is 491129. The reversal of 491126 is 621194.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491129) by changing a digit.

491126 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122780 + ... + 122783.

It is an arithmetic number, because the mean of its divisors is an integer number (184173).

2⁴⁹¹¹²⁶ is an apocalyptic number.

491126 is a deficient number, since it is larger than the sum of its proper divisors (245566).

491126 is a wasteful number, since it uses less digits than its factorization.

491126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245565.

The product of its digits is 432, while the sum is 23.

The square root of 491126 is about 700.8038241905. The cubic root of 491126 is about 78.8976937721.

The spelling of 491126 in words is "four hundred ninety-one thousand, one hundred twenty-six".