248350409 has 2 divisors, whose sum is σ = 248350410. Its totient is φ = 248350408.

The previous prime is 248350363. The next prime is 248350447. The reversal of 248350409 is 904053842.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 214710409 + 33640000 = 14653^2 + 5800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248350409 is a prime.

It is not a weakly prime, because it can be changed into another prime (248350309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124175204 + 124175205.

It is an arithmetic number, because the mean of its divisors is an integer number (124175205).

Almost surely, 2^248350409 is an apocalyptic number.

It is an amenable number.

248350409 is a deficient number, since it is larger than the sum of its proper divisors (1).

248350409 is an equidigital number, since it uses as much as digits as its factorization.

248350409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 248350409 is about 15759.1373177595. The cubic root of 248350409 is about 628.5718966127.

The spelling of 248350409 in words is "two hundred forty-eight million, three hundred fifty thousand, four hundred nine".