1491312848 has 10 divisors (see below), whose sum is σ = 2889418674. Its totient is φ = 745656416.

The previous prime is 1491312731. The next prime is 1491312853. The reversal of 1491312848 is 8482131941.

It can be written as a sum of positive squares in only one way, i.e., 1437319744 + 53993104 = 37912^2 + 7348^2 .

It is a super-2 number, since 2×1491312848² = 4448028021219742208, which contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 46603511 + ... + 46603542.

Almost surely, 2^1491312848 is an apocalyptic number.

It is an amenable number.

1491312848 is a deficient number, since it is larger than the sum of its proper divisors (1398105826).

1491312848 is an equidigital number, since it uses as much as digits as its factorization.

1491312848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93207061 (or 93207055 counting only the distinct ones).

The product of its digits is 55296, while the sum is 41.

The square root of 1491312848 is about 38617.5199617997. The cubic root of 1491312848 is about 1142.5001167989.

The spelling of 1491312848 in words is "one billion, four hundred ninety-one million, three hundred twelve thousand, eight hundred forty-eight".