1915325249 has 2 divisors, whose sum is σ = 1915325250. Its totient is φ = 1915325248.

The previous prime is 1915325233. The next prime is 1915325287. The reversal of 1915325249 is 9425235191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1643734849 + 271590400 = 40543^2 + 16480^2 .

It is a cyclic number.

It is not a de Polignac number, because 1915325249 - 2⁴ = 1915325233 is a prime.

It is not a weakly prime, because it can be changed into another prime (1915325149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 957662624 + 957662625.

It is an arithmetic number, because the mean of its divisors is an integer number (957662625).

Almost surely, 2^1915325249 is an apocalyptic number.

It is an amenable number.

1915325249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1915325249 is an equidigital number, since it uses as much as digits as its factorization.

1915325249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 41.

The square root of 1915325249 is about 43764.4290377471. The cubic root of 1915325249 is about 1241.8834646733.

The spelling of 1915325249 in words is "one billion, nine hundred fifteen million, three hundred twenty-five thousand, two hundred forty-nine".