2609129231 has 2 divisors, whose sum is σ = 2609129232. Its totient is φ = 2609129230.

The previous prime is 2609129221. The next prime is 2609129233. The reversal of 2609129231 is 1329219062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2609129231 - 2¹⁸ = 2608867087 is a prime.

It is a super-3 number, since 3×2609129231³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 2609129233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2609129191 and 2609129200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2609129233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1304564615 + 1304564616.

It is an arithmetic number, because the mean of its divisors is an integer number (1304564616).

Almost surely, 2^2609129231 is an apocalyptic number.

2609129231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2609129231 is an equidigital number, since it uses as much as digits as its factorization.

2609129231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 2609129231 is about 51079.6361674591. The cubic root of 2609129231 is about 1376.6763872455.

The spelling of 2609129231 in words is "two billion, six hundred nine million, one hundred twenty-nine thousand, two hundred thirty-one".