207157147 has 2 divisors, whose sum is σ = 207157148. Its totient is φ = 207157146.

The previous prime is 207157091. The next prime is 207157151. The reversal of 207157147 is 741751702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 207157147 - 2¹¹ = 207155099 is a prime.

It is not a weakly prime, because it can be changed into another prime (207157157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103578573 + 103578574.

It is an arithmetic number, because the mean of its divisors is an integer number (103578574).

Almost surely, 2^207157147 is an apocalyptic number.

207157147 is a deficient number, since it is larger than the sum of its proper divisors (1).

207157147 is an equidigital number, since it uses as much as digits as its factorization.

207157147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 207157147 is about 14392.9547696086. The cubic root of 207157147 is about 591.6978261797.

The spelling of 207157147 in words is "two hundred seven million, one hundred fifty-seven thousand, one hundred forty-seven".