147432689 has 2 divisors, whose sum is σ = 147432690. Its totient is φ = 147432688.

The previous prime is 147432671. The next prime is 147432731. The reversal of 147432689 is 986234741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143400625 + 4032064 = 11975^2 + 2008^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147432689 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (147432289) 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, 73716344 + 73716345.

It is an arithmetic number, because the mean of its divisors is an integer number (73716345).

Almost surely, 2^147432689 is an apocalyptic number.

It is an amenable number.

147432689 is a deficient number, since it is larger than the sum of its proper divisors (1).

147432689 is an equidigital number, since it uses as much as digits as its factorization.

147432689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 44.

The square root of 147432689 is about 12142.1863352528. The cubic root of 147432689 is about 528.2805186475.

The spelling of 147432689 in words is "one hundred forty-seven million, four hundred thirty-two thousand, six hundred eighty-nine".