1291478482 has 8 divisors (see below), whose sum is σ = 2213963136. Its totient is φ = 553490772.

The previous prime is 1291478479. The next prime is 1291478483. The reversal of 1291478482 is 2848741921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1291478483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46124218 + ... + 46124245.

It is an arithmetic number, because the mean of its divisors is an integer number (276745392).

Almost surely, 2^1291478482 is an apocalyptic number.

1291478482 is a deficient number, since it is larger than the sum of its proper divisors (922484654).

1291478482 is an equidigital number, since it uses as much as digits as its factorization.

1291478482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92248472.

The product of its digits is 258048, while the sum is 46.

The square root of 1291478482 is about 35937.1462695635. The cubic root of 1291478482 is about 1089.0029549387.

The spelling of 1291478482 in words is "one billion, two hundred ninety-one million, four hundred seventy-eight thousand, four hundred eighty-two".