7115971 has 2 divisors, whose sum is σ = 7115972. Its totient is φ = 7115970.

The previous prime is 7115963. The next prime is 7115981. The reversal of 7115971 is 1795117.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7115971 - 2³ = 7115963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7115921) 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, 3557985 + 3557986.

It is an arithmetic number, because the mean of its divisors is an integer number (3557986).

Almost surely, 2^7115971 is an apocalyptic number.

7115971 is a deficient number, since it is larger than the sum of its proper divisors (1).

7115971 is an equidigital number, since it uses as much as digits as its factorization.

7115971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2205, while the sum is 31.

The square root of 7115971 is about 2667.5777401980. The cubic root of 7115971 is about 192.3437400609.

The spelling of 7115971 in words is "seven million, one hundred fifteen thousand, nine hundred seventy-one".