248154281 has 2 divisors, whose sum is σ = 248154282. Its totient is φ = 248154280.

The previous prime is 248154271. The next prime is 248154311. The reversal of 248154281 is 182451842.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187936681 + 60217600 = 13709^2 + 7760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248154281 is a prime.

It is a super-2 number, since 2×248154281² = 123161094357253922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (248154251) 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, 124077140 + 124077141.

It is an arithmetic number, because the mean of its divisors is an integer number (124077141).

Almost surely, 2^248154281 is an apocalyptic number.

It is an amenable number.

248154281 is a deficient number, since it is larger than the sum of its proper divisors (1).

248154281 is an equidigital number, since it uses as much as digits as its factorization.

248154281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20480, while the sum is 35.

The square root of 248154281 is about 15752.9134130801. The cubic root of 248154281 is about 628.4063871669.

The spelling of 248154281 in words is "two hundred forty-eight million, one hundred fifty-four thousand, two hundred eighty-one".