1491054084 has 36 divisors (see below), whose sum is σ = 4058981836. Its totient is φ = 458785728.

The previous prime is 1491054079. The next prime is 1491054091. The reversal of 1491054084 is 4804501941.

1491054084 is a `hidden beast` number, since 149 + 105 + 408 + 4 = 666.

1491054084 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 316484100 + 1174569984 = 17790^2 + 34272^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1592539 + ... + 1593474.

Almost surely, 2^1491054084 is an apocalyptic number.

It is an amenable number.

1491054084 is an abundant number, since it is smaller than the sum of its proper divisors (2567927752).

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

1491054084 is a wasteful number, since it uses less digits than its factorization.

1491054084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3186036 (or 3186031 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1491054084 is about 38614.1694718403. The cubic root of 1491054084 is about 1142.4340329674.

The spelling of 1491054084 in words is "one billion, four hundred ninety-one million, fifty-four thousand, eighty-four".