2531292138269 has 2 divisors, whose sum is σ = 2531292138270. Its totient is φ = 2531292138268.

The previous prime is 2531292138259. The next prime is 2531292138289. The reversal of 2531292138269 is 9628312921352.

2531292138269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1394435063044 + 1136857075225 = 1180862^2 + 1066235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2531292138269 is a prime.

It is a super-2 number, since 2×2531292138269² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2531292138269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2531292138259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265646069134 + 1265646069135.

It is an arithmetic number, because the mean of its divisors is an integer number (1265646069135).

Almost surely, 2^{2531292138269} is an apocalyptic number.

It is an amenable number.

2531292138269 is a deficient number, since it is larger than the sum of its proper divisors (1).

2531292138269 is an equidigital number, since it uses as much as digits as its factorization.

2531292138269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2799360, while the sum is 53.

The spelling of 2531292138269 in words is "two trillion, five hundred thirty-one billion, two hundred ninety-two million, one hundred thirty-eight thousand, two hundred sixty-nine".