7248281 has 4 divisors (see below), whose sum is σ = 7266000. Its totient is φ = 7230564.

The previous prime is 7248277. The next prime is 7248299. The reversal of 7248281 is 1828427.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1828427 = 19 ⋅96233.

It is a cyclic number.

It is not a de Polignac number, because 7248281 - 2² = 7248277 is a prime.

It is a super-2 number, since 2×7248281² = 105075154909922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7248211) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8231 + ... + 9068.

It is an arithmetic number, because the mean of its divisors is an integer number (1816500).

Almost surely, 2^7248281 is an apocalyptic number.

It is an amenable number.

7248281 is a deficient number, since it is larger than the sum of its proper divisors (17719).

7248281 is a wasteful number, since it uses less digits than its factorization.

7248281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17718.

The product of its digits is 7168, while the sum is 32.

The square root of 7248281 is about 2692.2631743572. The cubic root of 7248281 is about 193.5285341856.

The spelling of 7248281 in words is "seven million, two hundred forty-eight thousand, two hundred eighty-one".