260953289 has 2 divisors, whose sum is σ = 260953290. Its totient is φ = 260953288.

The previous prime is 260953169. The next prime is 260953321. The reversal of 260953289 is 982359062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258727225 + 2226064 = 16085^2 + 1492^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260953289 is a prime.

It is not a weakly prime, because it can be changed into another prime (260973289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130476644 + 130476645.

It is an arithmetic number, because the mean of its divisors is an integer number (130476645).

Almost surely, 2^260953289 is an apocalyptic number.

It is an amenable number.

260953289 is a deficient number, since it is larger than the sum of its proper divisors (1).

260953289 is an equidigital number, since it uses as much as digits as its factorization.

260953289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 260953289 is about 16154.0486875582. The cubic root of 260953289 is about 639.0295260581.

The spelling of 260953289 in words is "two hundred sixty million, nine hundred fifty-three thousand, two hundred eighty-nine".