248622145 has 8 divisors (see below), whose sum is σ = 300349800. Its totient is φ = 197562240.

The previous prime is 248622137. The next prime is 248622169. The reversal of 248622145 is 541226842.

It can be written as a sum of positive squares in 4 ways, for example, as 18766224 + 229855921 = 4332^2 + 15161^2 .

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

It is not a de Polignac number, because 248622145 - 2³ = 248622137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 248622145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166116 + ... + 167605.

It is an arithmetic number, because the mean of its divisors is an integer number (37543725).

Almost surely, 2^248622145 is an apocalyptic number.

It is an amenable number.

248622145 is a deficient number, since it is larger than the sum of its proper divisors (51727655).

248622145 is a wasteful number, since it uses less digits than its factorization.

248622145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333875.

The product of its digits is 30720, while the sum is 34.

The square root of 248622145 is about 15767.7564986272. The cubic root of 248622145 is about 628.8010665652.

Adding to 248622145 its reverse (541226842), we get a palindrome (789848987).

The spelling of 248622145 in words is "two hundred forty-eight million, six hundred twenty-two thousand, one hundred forty-five".