1248900217 has 2 divisors, whose sum is σ = 1248900218. Its totient is φ = 1248900216.

The previous prime is 1248900199. The next prime is 1248900227. The reversal of 1248900217 is 7120098421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 944886121 + 304014096 = 30739^2 + 17436^2 .

It is a cyclic number.

It is not a de Polignac number, because 1248900217 - 2¹⁵ = 1248867449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1248900227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624450108 + 624450109.

It is an arithmetic number, because the mean of its divisors is an integer number (624450109).

Almost surely, 2^1248900217 is an apocalyptic number.

It is an amenable number.

1248900217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1248900217 is an equidigital number, since it uses as much as digits as its factorization.

1248900217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 1248900217 is about 35339.7823564322. The cubic root of 1248900217 is about 1076.9013308991.

Adding to 1248900217 its reverse (7120098421), we get a palindrome (8368998638).

The spelling of 1248900217 in words is "one billion, two hundred forty-eight million, nine hundred thousand, two hundred seventeen".