207440147 has 2 divisors, whose sum is σ = 207440148. Its totient is φ = 207440146.

The previous prime is 207440143. The next prime is 207440153. The reversal of 207440147 is 741044702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 207440147 - 2² = 207440143 is a prime.

It is not a weakly prime, because it can be changed into another prime (207440143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103720073 + 103720074.

It is an arithmetic number, because the mean of its divisors is an integer number (103720074).

Almost surely, 2^207440147 is an apocalyptic number.

207440147 is a deficient number, since it is larger than the sum of its proper divisors (1).

207440147 is an equidigital number, since it uses as much as digits as its factorization.

207440147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 207440147 is about 14402.7826130925. The cubic root of 207440147 is about 591.9671455394.

Adding to 207440147 its reverse (741044702), we get a palindrome (948484849).

The spelling of 207440147 in words is "two hundred seven million, four hundred forty thousand, one hundred forty-seven".