1148489 has 2 divisors, whose sum is σ = 1148490. Its totient is φ = 1148488.

The previous prime is 1148453. The next prime is 1148501. The reversal of 1148489 is 9848411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1138489 + 10000 = 1067^2 + 100^2 .

It is a cyclic number.

It is not a de Polignac number, because 1148489 - 2¹² = 1144393 is a prime.

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 (1148089) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574244 + 574245.

It is an arithmetic number, because the mean of its divisors is an integer number (574245).

2^1148489 is an apocalyptic number.

It is an amenable number.

1148489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148489 is an equidigital number, since it uses as much as digits as its factorization.

1148489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 35.

The square root of 1148489 is about 1071.6757905262. The cubic root of 1148489 is about 104.7230494402.

The spelling of 1148489 in words is "one million, one hundred forty-eight thousand, four hundred eighty-nine".