1159649 has 2 divisors, whose sum is σ = 1159650. Its totient is φ = 1159648.

The previous prime is 1159633. The next prime is 1159661. The reversal of 1159649 is 9469511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 889249 + 270400 = 943^2 + 520^2 .

It is a cyclic number.

It is not a de Polignac number, because 1159649 - 2⁴ = 1159633 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 (1159049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579824 + 579825.

It is an arithmetic number, because the mean of its divisors is an integer number (579825).

2^1159649 is an apocalyptic number.

It is an amenable number.

1159649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1159649 is an equidigital number, since it uses as much as digits as its factorization.

1159649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 35.

The square root of 1159649 is about 1076.8700014394. The cubic root of 1159649 is about 105.0611586259.

The spelling of 1159649 in words is "one million, one hundred fifty-nine thousand, six hundred forty-nine".