2102459 has 2 divisors, whose sum is σ = 2102460. Its totient is φ = 2102458.

The previous prime is 2102431. The next prime is 2102461. The reversal of 2102459 is 9542012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2102459 - 2¹² = 2098363 is a prime.

Together with 2102461, 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 (2102479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051229 + 1051230.

It is an arithmetic number, because the mean of its divisors is an integer number (1051230).

2^2102459 is an apocalyptic number.

2102459 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102459 is an equidigital number, since it uses as much as digits as its factorization.

2102459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2102459 is about 1449.9858620000. The cubic root of 2102459 is about 128.1078802428.

The spelling of 2102459 in words is "two million, one hundred two thousand, four hundred fifty-nine".