1491069712 has 40 divisors (see below), whose sum is σ = 3205018080. Its totient is φ = 666266880.

The previous prime is 1491069683. The next prime is 1491069731. The reversal of 1491069712 is 2179601941.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 61413 + ... + 82180.

It is an arithmetic number, because the mean of its divisors is an integer number (80125452).

Almost surely, 2^1491069712 is an apocalyptic number.

It is an amenable number.

1491069712 is an abundant number, since it is smaller than the sum of its proper divisors (1713948368).

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

1491069712 is a wasteful number, since it uses less digits than its factorization.

1491069712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143671 (or 143665 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 1491069712 is about 38614.3718322596. The cubic root of 1491069712 is about 1142.4380243041.

The spelling of 1491069712 in words is "one billion, four hundred ninety-one million, sixty-nine thousand, seven hundred twelve".