248472569 has 2 divisors, whose sum is σ = 248472570. Its totient is φ = 248472568.

The previous prime is 248472563. The next prime is 248472577. The reversal of 248472569 is 965274842.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248472169 + 400 = 15763^2 + 20^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248472569 is a prime.

It is a super-2 number, since 2×248472569² = 123477235090919522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (248472563) 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, 124236284 + 124236285.

It is an arithmetic number, because the mean of its divisors is an integer number (124236285).

Almost surely, 2^248472569 is an apocalyptic number.

It is an amenable number.

248472569 is a deficient number, since it is larger than the sum of its proper divisors (1).

248472569 is an equidigital number, since it uses as much as digits as its factorization.

248472569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 47.

The square root of 248472569 is about 15763.0126879350. The cubic root of 248472569 is about 628.6749415491.

The spelling of 248472569 in words is "two hundred forty-eight million, four hundred seventy-two thousand, five hundred sixty-nine".