1042590709 has 2 divisors, whose sum is σ = 1042590710. Its totient is φ = 1042590708.

The previous prime is 1042590701. The next prime is 1042590749. The reversal of 1042590709 is 9070952401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 602849809 + 439740900 = 24553^2 + 20970^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042590709 - 2³ = 1042590701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042590701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521295354 + 521295355.

It is an arithmetic number, because the mean of its divisors is an integer number (521295355).

Almost surely, 2^1042590709 is an apocalyptic number.

It is an amenable number.

1042590709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042590709 is an equidigital number, since it uses as much as digits as its factorization.

1042590709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 1042590709 is about 32289.1732473905. The cubic root of 1042590709 is about 1013.9999886533. Note that the first 4 decimals are identical.

The spelling of 1042590709 in words is "one billion, forty-two million, five hundred ninety thousand, seven hundred nine".