1992259 has 2 divisors, whose sum is σ = 1992260. Its totient is φ = 1992258.

The previous prime is 1992257. The next prime is 1992269. The reversal of 1992259 is 9522991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1992259 - 2¹ = 1992257 is a prime.

Together with 1992257, it forms a pair of twin primes.

1992259 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1992251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996129 + 996130.

It is an arithmetic number, because the mean of its divisors is an integer number (996130).

2^1992259 is an apocalyptic number.

1992259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1992259 is an equidigital number, since it uses as much as digits as its factorization.

1992259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 37.

The square root of 1992259 is about 1411.4740521880. The cubic root of 1992259 is about 125.8293440056.

The spelling of 1992259 in words is "one million, nine hundred ninety-two thousand, two hundred fifty-nine".