248310945 has 12 divisors (see below), whose sum is σ = 430405716. Its totient is φ = 132432480.

The previous prime is 248310913. The next prime is 248310947. The reversal of 248310945 is 549013842.

It can be written as a sum of positive squares in 2 ways, for example, as 119443041 + 128867904 = 10929^2 + 11352^2 .

It is not a de Polignac number, because 248310945 - 2⁵ = 248310913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (248310947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2758966 + ... + 2759055.

It is an arithmetic number, because the mean of its divisors is an integer number (35867143).

Almost surely, 2^248310945 is an apocalyptic number.

It is an amenable number.

248310945 is a deficient number, since it is larger than the sum of its proper divisors (182094771).

248310945 is a wasteful number, since it uses less digits than its factorization.

248310945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5518032 (or 5518029 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 248310945 is about 15757.8851690194. The cubic root of 248310945 is about 628.5386005460.

The spelling of 248310945 in words is "two hundred forty-eight million, three hundred ten thousand, nine hundred forty-five".