1490081 has 2 divisors, whose sum is σ = 1490082. Its totient is φ = 1490080.

The previous prime is 1490059. The next prime is 1490089. The reversal of 1490081 is 1800941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1488400 + 1681 = 1220^2 + 41^2 .

It is a cyclic number.

It is not a de Polignac number, because 1490081 - 2¹⁰ = 1489057 is a prime.

It is a super-2 number, since 2×1490081² = 4440682773122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1490089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 745040 + 745041.

It is an arithmetic number, because the mean of its divisors is an integer number (745041).

2^1490081 is an apocalyptic number.

It is an amenable number.

1490081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1490081 is an equidigital number, since it uses as much as digits as its factorization.

1490081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1490081 is about 1220.6887400152. The cubic root of 1490081 is about 114.2185455756.

The spelling of 1490081 in words is "one million, four hundred ninety thousand, eighty-one".