248223121 has 12 divisors (see below), whose sum is σ = 260557108. Its totient is φ = 236297952.

The previous prime is 248223113. The next prime is 248223127. The reversal of 248223121 is 121322842.

It can be written as a sum of positive squares in 2 ways, for example, as 216413521 + 31809600 = 14711^2 + 5640^2 .

It is not a de Polignac number, because 248223121 - 2³ = 248223113 is a prime.

It is a super-2 number, since 2×248223121² = 123229435597961282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (248223127) 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, 80215 + ... + 83251.

Almost surely, 2^248223121 is an apocalyptic number.

It is an amenable number.

248223121 is a deficient number, since it is larger than the sum of its proper divisors (12333987).

248223121 is an equidigital number, since it uses as much as digits as its factorization.

248223121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3168 (or 3121 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 248223121 is about 15755.0982542160. The cubic root of 248223121 is about 628.4644901287.

Adding to 248223121 its reverse (121322842), we get a palindrome (369545963).

The spelling of 248223121 in words is "two hundred forty-eight million, two hundred twenty-three thousand, one hundred twenty-one".