147638471 has 2 divisors, whose sum is σ = 147638472. Its totient is φ = 147638470.

The previous prime is 147638459. The next prime is 147638501. The reversal of 147638471 is 174836741.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 147638471 - 2¹⁴ = 147622087 is a prime.

It is a super-3 number, since 3×147638471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147638401) 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, 73819235 + 73819236.

It is an arithmetic number, because the mean of its divisors is an integer number (73819236).

Almost surely, 2^147638471 is an apocalyptic number.

147638471 is a deficient number, since it is larger than the sum of its proper divisors (1).

147638471 is an equidigital number, since it uses as much as digits as its factorization.

147638471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 41.

The square root of 147638471 is about 12150.6572250229. The cubic root of 147638471 is about 528.5261902673.

The spelling of 147638471 in words is "one hundred forty-seven million, six hundred thirty-eight thousand, four hundred seventy-one".