1530641249 has 2 divisors, whose sum is σ = 1530641250. Its totient is φ = 1530641248.

The previous prime is 1530641239. The next prime is 1530641269. The reversal of 1530641249 is 9421460351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1319142400 + 211498849 = 36320^2 + 14543^2 .

It is an emirp because it is prime and its reverse (9421460351) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1530641249 is a prime.

It is not a weakly prime, because it can be changed into another prime (1530641239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765320624 + 765320625.

It is an arithmetic number, because the mean of its divisors is an integer number (765320625).

Almost surely, 2^1530641249 is an apocalyptic number.

It is an amenable number.

1530641249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530641249 is an equidigital number, since it uses as much as digits as its factorization.

1530641249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1530641249 is about 39123.4104980637. The cubic root of 1530641249 is about 1152.4563122141.

The spelling of 1530641249 in words is "one billion, five hundred thirty million, six hundred forty-one thousand, two hundred forty-nine".