1020599 has 2 divisors, whose sum is σ = 1020600. Its totient is φ = 1020598.

The previous prime is 1020589. The next prime is 1020619. The reversal of 1020599 is 9950201.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9950201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1020599 - 2⁴ = 1020583 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510299 + 510300.

It is an arithmetic number, because the mean of its divisors is an integer number (510300).

2^1020599 is an apocalyptic number.

1020599 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020599 is an equidigital number, since it uses as much as digits as its factorization.

1020599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 1020599 is about 1010.2469995006. The cubic root of 1020599 is about 100.6819719040.

The spelling of 1020599 in words is "one million, twenty thousand, five hundred ninety-nine".