147317789 has 2 divisors, whose sum is σ = 147317790. Its totient is φ = 147317788.

The previous prime is 147317713. The next prime is 147317813. The reversal of 147317789 is 987713741.

It is a happy number.

147317789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133217764 + 14100025 = 11542^2 + 3755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147317789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147317689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73658894 + 73658895.

It is an arithmetic number, because the mean of its divisors is an integer number (73658895).

Almost surely, 2^147317789 is an apocalyptic number.

It is an amenable number.

147317789 is a deficient number, since it is larger than the sum of its proper divisors (1).

147317789 is an equidigital number, since it uses as much as digits as its factorization.

147317789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 296352, while the sum is 47.

The square root of 147317789 is about 12137.4539751960. The cubic root of 147317789 is about 528.1432464968.

The spelling of 147317789 in words is "one hundred forty-seven million, three hundred seventeen thousand, seven hundred eighty-nine".