1490493811 has 2 divisors, whose sum is σ = 1490493812. Its totient is φ = 1490493810.

The previous prime is 1490493727. The next prime is 1490493847. The reversal of 1490493811 is 1183940941.

It is a strong prime.

It is an emirp because it is prime and its reverse (1183940941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1490493811 - 2¹¹ = 1490491763 is a prime.

It is not a weakly prime, because it can be changed into another prime (1490499811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 745246905 + 745246906.

It is an arithmetic number, because the mean of its divisors is an integer number (745246906).

Almost surely, 2^1490493811 is an apocalyptic number.

1490493811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1490493811 is an equidigital number, since it uses as much as digits as its factorization.

1490493811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 1490493811 is about 38606.9140310385. The cubic root of 1490493811 is about 1142.2909227705.

The spelling of 1490493811 in words is "one billion, four hundred ninety million, four hundred ninety-three thousand, eight hundred eleven".