2543135269 has 2 divisors, whose sum is σ = 2543135270. Its totient is φ = 2543135268.

The previous prime is 2543135207. The next prime is 2543135279. The reversal of 2543135269 is 9625313452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1652829025 + 890306244 = 40655^2 + 29838^2 .

It is a cyclic number.

It is not a de Polignac number, because 2543135269 - 2¹³ = 2543127077 is a prime.

It is a super-2 number, since 2×2543135269² = 12935073992863404722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2543135279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271567634 + 1271567635.

It is an arithmetic number, because the mean of its divisors is an integer number (1271567635).

Almost surely, 2^2543135269 is an apocalyptic number.

It is an amenable number.

2543135269 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543135269 is an equidigital number, since it uses as much as digits as its factorization.

2543135269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 40.

The square root of 2543135269 is about 50429.5079194711. The cubic root of 2543135269 is about 1364.9701485956.

The spelling of 2543135269 in words is "two billion, five hundred forty-three million, one hundred thirty-five thousand, two hundred sixty-nine".