491174 has 4 divisors (see below), whose sum is σ = 736764. Its totient is φ = 245586.

The previous prime is 491171. The next prime is 491201. The reversal of 491174 is 471194.

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 (491171) 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, 122792 + ... + 122795.

It is an arithmetic number, because the mean of its divisors is an integer number (184191).

2⁴⁹¹¹⁷⁴ is an apocalyptic number.

491174 is a deficient number, since it is larger than the sum of its proper divisors (245590).

491174 is a wasteful number, since it uses less digits than its factorization.

491174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245589.

The product of its digits is 1008, while the sum is 26.

The square root of 491174 is about 700.8380697422. The cubic root of 491174 is about 78.9002640330.

The spelling of 491174 in words is "four hundred ninety-one thousand, one hundred seventy-four".