260838931 has 2 divisors, whose sum is σ = 260838932. Its totient is φ = 260838930.

The previous prime is 260838913. The next prime is 260838943. The reversal of 260838931 is 139838062.

Together with previous prime (260838913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 260838931 - 2⁵ = 260838899 is a prime.

It is a super-2 number, since 2×260838931² = 136073895850445522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (260838911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130419465 + 130419466.

It is an arithmetic number, because the mean of its divisors is an integer number (130419466).

Almost surely, 2^260838931 is an apocalyptic number.

260838931 is a deficient number, since it is larger than the sum of its proper divisors (1).

260838931 is an equidigital number, since it uses as much as digits as its factorization.

260838931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 260838931 is about 16150.5086916790. The cubic root of 260838931 is about 638.9361647565.

The spelling of 260838931 in words is "two hundred sixty million, eight hundred thirty-eight thousand, nine hundred thirty-one".