1019248897 has 2 divisors, whose sum is σ = 1019248898. Its totient is φ = 1019248896.

The previous prime is 1019248891. The next prime is 1019248913. The reversal of 1019248897 is 7988429101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 784056001 + 235192896 = 28001^2 + 15336^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1019248897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1019248897.

It is not a weakly prime, because it can be changed into another prime (1019248891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509624448 + 509624449.

It is an arithmetic number, because the mean of its divisors is an integer number (509624449).

Almost surely, 2^1019248897 is an apocalyptic number.

It is an amenable number.

1019248897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1019248897 is an equidigital number, since it uses as much as digits as its factorization.

1019248897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 49.

The square root of 1019248897 is about 31925.6777061976. The cubic root of 1019248897 is about 1006.3755647893.

The spelling of 1019248897 in words is "one billion, nineteen million, two hundred forty-eight thousand, eight hundred ninety-seven".