248712745 has 8 divisors (see below), whose sum is σ = 298983240. Its totient is φ = 198618240.

The previous prime is 248712743. The next prime is 248712749. The reversal of 248712745 is 547217842.

248712745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 18249984 + 230462761 = 4272^2 + 15181^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 248712745 - 2¹ = 248712743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 248712698 and 248712707.

It is not an unprimeable number, because it can be changed into a prime (248712743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40866 + ... + 46555.

It is an arithmetic number, because the mean of its divisors is an integer number (37372905).

Almost surely, 2^248712745 is an apocalyptic number.

It is an amenable number.

248712745 is a deficient number, since it is larger than the sum of its proper divisors (50270495).

248712745 is an equidigital number, since it uses as much as digits as its factorization.

248712745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87995.

The product of its digits is 125440, while the sum is 40.

The square root of 248712745 is about 15770.6291884630. The cubic root of 248712745 is about 628.8774374211.

The spelling of 248712745 in words is "two hundred forty-eight million, seven hundred twelve thousand, seven hundred forty-five".