7578113 has 2 divisors, whose sum is σ = 7578114. Its totient is φ = 7578112.

The previous prime is 7578101. The next prime is 7578121. The reversal of 7578113 is 3118757.

7578113 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4276624 + 3301489 = 2068^2 + 1817^2 .

It is an emirp because it is prime and its reverse (3118757) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7578113 - 2⁴ = 7578097 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7578113.

It is not a weakly prime, because it can be changed into another prime (7578143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3789056 + 3789057.

It is an arithmetic number, because the mean of its divisors is an integer number (3789057).

Almost surely, 2^7578113 is an apocalyptic number.

It is an amenable number.

7578113 is a deficient number, since it is larger than the sum of its proper divisors (1).

7578113 is an equidigital number, since it uses as much as digits as its factorization.

7578113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5880, while the sum is 32.

The square root of 7578113 is about 2752.8372636246. The cubic root of 7578113 is about 196.4205965184.

The spelling of 7578113 in words is "seven million, five hundred seventy-eight thousand, one hundred thirteen".