491148 has 36 divisors (see below), whose sum is σ = 1419600. Its totient is φ = 140256.

The previous prime is 491137. The next prime is 491149. The reversal of 491148 is 841194.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (491149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 723 + ... + 1226.

2⁴⁹¹¹⁴⁸ is an apocalyptic number.

It is an amenable number.

491148 is an abundant number, since it is smaller than the sum of its proper divisors (928452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

491148 is a wasteful number, since it uses less digits than its factorization.

491148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966 (or 1961 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 491148 is about 700.8195202761. The cubic root of 491148 is about 78.8988718292.

The spelling of 491148 in words is "four hundred ninety-one thousand, one hundred forty-eight".