1023199 has 2 divisors, whose sum is σ = 1023200. Its totient is φ = 1023198.

The previous prime is 1023173. The next prime is 1023203. The reversal of 1023199 is 9913201.

It is a strong prime.

It is an emirp because it is prime and its reverse (9913201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1023199 - 2⁵ = 1023167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511599 + 511600.

It is an arithmetic number, because the mean of its divisors is an integer number (511600).

2^1023199 is an apocalyptic number.

1023199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023199 is an equidigital number, since it uses as much as digits as its factorization.

1023199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 1023199 is about 1011.5329950130. The cubic root of 1023199 is about 100.7673959704.

The spelling of 1023199 in words is "one million, twenty-three thousand, one hundred ninety-nine".