248919065 has 4 divisors (see below), whose sum is σ = 298702884. Its totient is φ = 199135248.

The previous prime is 248919061. The next prime is 248919103. The reversal of 248919065 is 560919842.

248919065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 146119744 + 102799321 = 12088^2 + 10139^2 .

It is a cyclic number.

It is not a de Polignac number, because 248919065 - 2² = 248919061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248919061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24891902 + ... + 24891911.

It is an arithmetic number, because the mean of its divisors is an integer number (74675721).

Almost surely, 2^248919065 is an apocalyptic number.

It is an amenable number.

248919065 is a deficient number, since it is larger than the sum of its proper divisors (49783819).

248919065 is an equidigital number, since it uses as much as digits as its factorization.

248919065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49783818.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 248919065 is about 15777.1691060215. The cubic root of 248919065 is about 629.0512847395.

The spelling of 248919065 in words is "two hundred forty-eight million, nine hundred nineteen thousand, sixty-five".