7481563 has 2 divisors, whose sum is σ = 7481564. Its totient is φ = 7481562.

The previous prime is 7481549. The next prime is 7481567. The reversal of 7481563 is 3651847.

It is a strong prime.

It is an emirp because it is prime and its reverse (3651847) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7481563 - 2⁵ = 7481531 is a prime.

It is not a weakly prime, because it can be changed into another prime (7481567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3740781 + 3740782.

It is an arithmetic number, because the mean of its divisors is an integer number (3740782).

Almost surely, 2^7481563 is an apocalyptic number.

7481563 is a deficient number, since it is larger than the sum of its proper divisors (1).

7481563 is an equidigital number, since it uses as much as digits as its factorization.

7481563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

The square root of 7481563 is about 2735.2445960097. The cubic root of 7481563 is about 195.5828539691.

The spelling of 7481563 in words is "seven million, four hundred eighty-one thousand, five hundred sixty-three".