147109709 has 2 divisors, whose sum is σ = 147109710. Its totient is φ = 147109708.

The previous prime is 147109693. The next prime is 147109727. The reversal of 147109709 is 907901741.

147109709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77387209 + 69722500 = 8797^2 + 8350^2 .

It is a cyclic number.

It is not a de Polignac number, because 147109709 - 2⁴ = 147109693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147109409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73554854 + 73554855.

It is an arithmetic number, because the mean of its divisors is an integer number (73554855).

Almost surely, 2^147109709 is an apocalyptic number.

It is an amenable number.

147109709 is a deficient number, since it is larger than the sum of its proper divisors (1).

147109709 is an equidigital number, since it uses as much as digits as its factorization.

147109709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 38.

The square root of 147109709 is about 12128.8791320550. The cubic root of 147109709 is about 527.8944695065.

The spelling of 147109709 in words is "one hundred forty-seven million, one hundred nine thousand, seven hundred nine".