7975147 has 2 divisors, whose sum is σ = 7975148. Its totient is φ = 7975146.

The previous prime is 7975139. The next prime is 7975169. The reversal of 7975147 is 7415797.

It is a weak prime.

It is an emirp because it is prime and its reverse (7415797) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7975147 - 2³ = 7975139 is a prime.

It is not a weakly prime, because it can be changed into another prime (7975447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3987573 + 3987574.

It is an arithmetic number, because the mean of its divisors is an integer number (3987574).

Almost surely, 2^7975147 is an apocalyptic number.

7975147 is a deficient number, since it is larger than the sum of its proper divisors (1).

7975147 is an equidigital number, since it uses as much as digits as its factorization.

7975147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61740, while the sum is 40.

The square root of 7975147 is about 2824.0302760417. The cubic root of 7975147 is about 199.7926768264.

The spelling of 7975147 in words is "seven million, nine hundred seventy-five thousand, one hundred forty-seven".