1468528309 has 2 divisors, whose sum is σ = 1468528310. Its totient is φ = 1468528308.

The previous prime is 1468528307. The next prime is 1468528331. The reversal of 1468528309 is 9038258641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1464210225 + 4318084 = 38265^2 + 2078^2 .

It is a cyclic number.

It is not a de Polignac number, because 1468528309 - 2¹ = 1468528307 is a prime.

Together with 1468528307, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1468528307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 734264154 + 734264155.

It is an arithmetic number, because the mean of its divisors is an integer number (734264155).

Almost surely, 2^1468528309 is an apocalyptic number.

It is an amenable number.

1468528309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1468528309 is an equidigital number, since it uses as much as digits as its factorization.

1468528309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 1468528309 is about 38321.3818774845. The cubic root of 1468528309 is about 1136.6517919965.

The spelling of 1468528309 in words is "one billion, four hundred sixty-eight million, five hundred twenty-eight thousand, three hundred nine".