289263061 has 2 divisors, whose sum is σ = 289263062. Its totient is φ = 289263060.

The previous prime is 289262993. The next prime is 289263071. The reversal of 289263061 is 160362982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186868900 + 102394161 = 13670^2 + 10119^2 .

It is a cyclic number.

It is not a de Polignac number, because 289263061 - 2⁷ = 289262933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 289263061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289263071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144631530 + 144631531.

It is an arithmetic number, because the mean of its divisors is an integer number (144631531).

Almost surely, 2^289263061 is an apocalyptic number.

It is an amenable number.

289263061 is a deficient number, since it is larger than the sum of its proper divisors (1).

289263061 is an equidigital number, since it uses as much as digits as its factorization.

289263061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 289263061 is about 17007.7353283734. The cubic root of 289263061 is about 661.3494436534.

The spelling of 289263061 in words is "two hundred eighty-nine million, two hundred sixty-three thousand, sixty-one".