1491045316 has 36 divisors (see below), whose sum is σ = 2854942524. Its totient is φ = 679004160.

The previous prime is 1491045313. The next prime is 1491045329. The reversal of 1491045316 is 6135401941.

It can be written as a sum of positive squares in 2 ways, for example, as 1383840000 + 107205316 = 37200^2 + 10354^2 .

It is a super-2 number, since 2×1491045316² = 4446432268731079712, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (1491045313) 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 11 ways as a sum of consecutive naturals, for example, 53940 + ... + 76756.

It is an arithmetic number, because the mean of its divisors is an integer number (79303959).

Almost surely, 2^1491045316 is an apocalyptic number.

It is an amenable number.

1491045316 is a deficient number, since it is larger than the sum of its proper divisors (1363897208).

1491045316 is a wasteful number, since it uses less digits than its factorization.

1491045316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22900 (or 22867 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1491045316 is about 38614.0559382202. The cubic root of 1491045316 is about 1142.4317936385.

The spelling of 1491045316 in words is "one billion, four hundred ninety-one million, forty-five thousand, three hundred sixteen".