1491189483 has 32 divisors (see below), whose sum is σ = 2474380800. Its totient is φ = 779417856.

The previous prime is 1491189451. The next prime is 1491189509. The reversal of 1491189483 is 3849811941.

It is not a de Polignac number, because 1491189483 - 2⁵ = 1491189451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1491189443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52866 + ... + 76007.

It is an arithmetic number, because the mean of its divisors is an integer number (77324400).

Almost surely, 2^1491189483 is an apocalyptic number.

1491189483 is a deficient number, since it is larger than the sum of its proper divisors (983191317).

1491189483 is a wasteful number, since it uses less digits than its factorization.

1491189483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128931.

The product of its digits is 248832, while the sum is 48.

The square root of 1491189483 is about 38615.9226615136. The cubic root of 1491189483 is about 1142.4686124740.

The spelling of 1491189483 in words is "one billion, four hundred ninety-one million, one hundred eighty-nine thousand, four hundred eighty-three".