1071659 has 2 divisors, whose sum is σ = 1071660. Its totient is φ = 1071658.

The previous prime is 1071643. The next prime is 1071661. The reversal of 1071659 is 9561701.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1071659 - 2⁴ = 1071643 is a prime.

It is a super-2 number, since 2×1071659² = 2296906024562, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1071661, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1071359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535829 + 535830.

It is an arithmetic number, because the mean of its divisors is an integer number (535830).

2^1071659 is an apocalyptic number.

1071659 is a deficient number, since it is larger than the sum of its proper divisors (1).

1071659 is an equidigital number, since it uses as much as digits as its factorization.

1071659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 1071659 is about 1035.2096406043. The cubic root of 1071659 is about 102.3337459503. Note that the first 3 decimals are identical.

The spelling of 1071659 in words is "one million, seventy-one thousand, six hundred fifty-nine".