1490491763 has 2 divisors, whose sum is σ = 1490491764. Its totient is φ = 1490491762.

The previous prime is 1490491753. The next prime is 1490491771. The reversal of 1490491763 is 3671940941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1490491763 - 2²² = 1486297459 is a prime.

It is not a weakly prime, because it can be changed into another prime (1490491753) 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 as a sum of consecutive naturals, namely, 745245881 + 745245882.

It is an arithmetic number, because the mean of its divisors is an integer number (745245882).

Almost surely, 2^1490491763 is an apocalyptic number.

1490491763 is a deficient number, since it is larger than the sum of its proper divisors (1).

1490491763 is an equidigital number, since it uses as much as digits as its factorization.

1490491763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 1490491763 is about 38606.8875072829. The cubic root of 1490491763 is about 1142.2903995853.

The spelling of 1490491763 in words is "one billion, four hundred ninety million, four hundred ninety-one thousand, seven hundred sixty-three".