491054 has 4 divisors (see below), whose sum is σ = 736584. Its totient is φ = 245526.

The previous prime is 491041. The next prime is 491059. The reversal of 491054 is 450194.

It is a happy number.

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

It is a super-2 number, since 2×491054² = 482268061832, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 491054.

It is not an unprimeable number, because it can be changed into a prime (491059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122762 + ... + 122765.

It is an arithmetic number, because the mean of its divisors is an integer number (184146).

2⁴⁹¹⁰⁵⁴ is an apocalyptic number.

491054 is a deficient number, since it is larger than the sum of its proper divisors (245530).

491054 is a wasteful number, since it uses less digits than its factorization.

491054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245529.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 491054 is about 700.7524527249. The cubic root of 491054 is about 78.8938380667.

The spelling of 491054 in words is "four hundred ninety-one thousand, fifty-four".