248057845 has 12 divisors (see below), whose sum is σ = 346268844. Its totient is φ = 170096640.

The previous prime is 248057837. The next prime is 248057857. The reversal of 248057845 is 548750842.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 113358609 + 134699236 = 10647^2 + 11606^2 .

It is not a de Polignac number, because 248057845 - 2³ = 248057837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 505996 + ... + 506485.

It is an arithmetic number, because the mean of its divisors is an integer number (28855737).

Almost surely, 2^248057845 is an apocalyptic number.

It is an amenable number.

248057845 is a deficient number, since it is larger than the sum of its proper divisors (98210999).

248057845 is a wasteful number, since it uses less digits than its factorization.

248057845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012500 (or 1012493 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 43.

The square root of 248057845 is about 15749.8522215289. The cubic root of 248057845 is about 628.3249743056.

The spelling of 248057845 in words is "two hundred forty-eight million, fifty-seven thousand, eight hundred forty-five".