248415211 has 4 divisors (see below), whose sum is σ = 270998424. Its totient is φ = 225832000.

The previous prime is 248415199. The next prime is 248415221. The reversal of 248415211 is 112514842.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248415211 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 248415211.

It is not an unprimeable number, because it can be changed into a prime (248415221) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11291590 + ... + 11291611.

It is an arithmetic number, because the mean of its divisors is an integer number (67749606).

Almost surely, 2^248415211 is an apocalyptic number.

248415211 is a deficient number, since it is larger than the sum of its proper divisors (22583213).

248415211 is a wasteful number, since it uses less digits than its factorization.

248415211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22583212.

The product of its digits is 2560, while the sum is 28.

The square root of 248415211 is about 15761.1931972170. The cubic root of 248415211 is about 628.6265628857.

The spelling of 248415211 in words is "two hundred forty-eight million, four hundred fifteen thousand, two hundred eleven".