260571137 has 2 divisors, whose sum is σ = 260571138. Its totient is φ = 260571136.

The previous prime is 260571133. The next prime is 260571169. The reversal of 260571137 is 731175062.

It is an a-pointer prime, because the next prime (260571169) can be obtained adding 260571137 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188677696 + 71893441 = 13736^2 + 8479^2 .

It is a cyclic number.

It is not a de Polignac number, because 260571137 - 2² = 260571133 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (260571133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130285568 + 130285569.

It is an arithmetic number, because the mean of its divisors is an integer number (130285569).

It is a Proth number, since it is equal to 497 ⋅ 2¹⁹ + 1 and 497 < 2¹⁹.

Almost surely, 2^260571137 is an apocalyptic number.

It is an amenable number.

260571137 is a deficient number, since it is larger than the sum of its proper divisors (1).

260571137 is an equidigital number, since it uses as much as digits as its factorization.

260571137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 260571137 is about 16142.2159878996. The cubic root of 260571137 is about 638.7174322495.

The spelling of 260571137 in words is "two hundred sixty million, five hundred seventy-one thousand, one hundred thirty-seven".