7245881 has 2 divisors, whose sum is σ = 7245882. Its totient is φ = 7245880.

The previous prime is 7245877. The next prime is 7245883. The reversal of 7245881 is 1885427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7203856 + 42025 = 2684^2 + 205^2 .

It is a cyclic number.

It is not a de Polignac number, because 7245881 - 2² = 7245877 is a prime.

It is a super-2 number, since 2×7245881² = 105005582932322, which contains 22 as substring.

Together with 7245883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7245883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3622940 + 3622941.

It is an arithmetic number, because the mean of its divisors is an integer number (3622941).

Almost surely, 2^7245881 is an apocalyptic number.

It is an amenable number.

7245881 is a deficient number, since it is larger than the sum of its proper divisors (1).

7245881 is an equidigital number, since it uses as much as digits as its factorization.

7245881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17920, while the sum is 35.

The square root of 7245881 is about 2691.8174157992. The cubic root of 7245881 is about 193.5071718904.

The spelling of 7245881 in words is "seven million, two hundred forty-five thousand, eight hundred eighty-one".