248617081 has 2 divisors, whose sum is σ = 248617082. Its totient is φ = 248617080.

The previous prime is 248617073. The next prime is 248617093. The reversal of 248617081 is 180716842.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216354681 + 32262400 = 14709^2 + 5680^2 .

It is a cyclic number.

It is not a de Polignac number, because 248617081 - 2³ = 248617073 is a prime.

It is a super-2 number, since 2×248617081² = 123620905929921122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 248617081.

It is not a weakly prime, because it can be changed into another prime (248617181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124308540 + 124308541.

It is an arithmetic number, because the mean of its divisors is an integer number (124308541).

Almost surely, 2^248617081 is an apocalyptic number.

It is an amenable number.

248617081 is a deficient number, since it is larger than the sum of its proper divisors (1).

248617081 is an equidigital number, since it uses as much as digits as its factorization.

248617081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 248617081 is about 15767.5959169431. The cubic root of 248617081 is about 628.7967973421.

The spelling of 248617081 in words is "two hundred forty-eight million, six hundred seventeen thousand, eighty-one".