147317689 has 2 divisors, whose sum is σ = 147317690. Its totient is φ = 147317688.

The previous prime is 147317671. The next prime is 147317701. The reversal of 147317689 is 986713741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146603664 + 714025 = 12108^2 + 845^2 .

It is a cyclic number.

It is not a de Polignac number, because 147317689 - 2⁷ = 147317561 is a prime.

It is not a weakly prime, because it can be changed into another prime (147317669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73658844 + 73658845.

It is an arithmetic number, because the mean of its divisors is an integer number (73658845).

Almost surely, 2^147317689 is an apocalyptic number.

It is an amenable number.

147317689 is a deficient number, since it is larger than the sum of its proper divisors (1).

147317689 is an equidigital number, since it uses as much as digits as its factorization.

147317689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 46.

The square root of 147317689 is about 12137.4498557152. The cubic root of 147317689 is about 528.1431269947.

The spelling of 147317689 in words is "one hundred forty-seven million, three hundred seventeen thousand, six hundred eighty-nine".