260454289 has 2 divisors, whose sum is σ = 260454290. Its totient is φ = 260454288.

The previous prime is 260454287. The next prime is 260454329. The reversal of 260454289 is 982454062.

It is an a-pointer prime, because the next prime (260454329) can be obtained adding 260454289 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224550225 + 35904064 = 14985^2 + 5992^2 .

It is a cyclic number.

It is not a de Polignac number, because 260454289 - 2¹ = 260454287 is a prime.

Together with 260454287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (260454283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130227144 + 130227145.

It is an arithmetic number, because the mean of its divisors is an integer number (130227145).

Almost surely, 2^260454289 is an apocalyptic number.

It is an amenable number.

260454289 is a deficient number, since it is larger than the sum of its proper divisors (1).

260454289 is an equidigital number, since it uses as much as digits as its factorization.

260454289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 260454289 is about 16138.5962524626. The cubic root of 260454289 is about 638.6219445526.

The spelling of 260454289 in words is "two hundred sixty million, four hundred fifty-four thousand, two hundred eighty-nine".