2026512209 has 2 divisors, whose sum is σ = 2026512210. Its totient is φ = 2026512208.

The previous prime is 2026512181. The next prime is 2026512247. The reversal of 2026512209 is 9022156202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1137577984 + 888934225 = 33728^2 + 29815^2 .

It is a cyclic number.

It is not a de Polignac number, because 2026512209 - 2⁸ = 2026511953 is a prime.

It is not a weakly prime, because it can be changed into another prime (2026512259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1013256104 + 1013256105.

It is an arithmetic number, because the mean of its divisors is an integer number (1013256105).

Almost surely, 2^2026512209 is an apocalyptic number.

It is an amenable number.

2026512209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2026512209 is an equidigital number, since it uses as much as digits as its factorization.

2026512209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2026512209 is about 45016.7991865259. The cubic root of 2026512209 is about 1265.4638446466.

The spelling of 2026512209 in words is "two billion, twenty-six million, five hundred twelve thousand, two hundred nine".