248108513 has 4 divisors (see below), whose sum is σ = 249688980. Its totient is φ = 246528048.

The previous prime is 248108473. The next prime is 248108561. The reversal of 248108513 is 315801842.

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 136235584 + 111872929 = 11672^2 + 10577^2 .

It is a cyclic number.

It is not a de Polignac number, because 248108513 - 2⁸ = 248108257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 248108513.

It is not an unprimeable number, because it can be changed into a prime (248108713) 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, 789998 + ... + 790311.

It is an arithmetic number, because the mean of its divisors is an integer number (62422245).

Almost surely, 2^248108513 is an apocalyptic number.

It is an amenable number.

248108513 is a deficient number, since it is larger than the sum of its proper divisors (1580467).

248108513 is a wasteful number, since it uses less digits than its factorization.

248108513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580466.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 248108513 is about 15751.4606624275. The cubic root of 248108513 is about 628.3677516969.

The spelling of 248108513 in words is "two hundred forty-eight million, one hundred eight thousand, five hundred thirteen".