491295130 has 32 divisors (see below), whose sum is σ = 923166720. Its totient is φ = 188031360.

The previous prime is 491295127. The next prime is 491295151. The reversal of 491295130 is 31592194.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 18687 + ... + 36493.

It is an arithmetic number, because the mean of its divisors is an integer number (28848960).

Almost surely, 2^491295130 is an apocalyptic number.

491295130 is a deficient number, since it is larger than the sum of its proper divisors (431871590).

491295130 is a wasteful number, since it uses less digits than its factorization.

491295130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17934.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 491295130 is about 22165.1783209610. The cubic root of 491295130 is about 789.0674944925.

The spelling of 491295130 in words is "four hundred ninety-one million, two hundred ninety-five thousand, one hundred thirty".