354105709 has 2 divisors, whose sum is σ = 354105710. Its totient is φ = 354105708.

The previous prime is 354105691. The next prime is 354105743. The reversal of 354105709 is 907501453.

It is an a-pointer prime, because the next prime (354105743) can be obtained adding 354105709 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288252484 + 65853225 = 16978^2 + 8115^2 .

It is a cyclic number.

It is not a de Polignac number, because 354105709 - 2¹³ = 354097517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354105749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177052854 + 177052855.

It is an arithmetic number, because the mean of its divisors is an integer number (177052855).

Almost surely, 2^354105709 is an apocalyptic number.

It is an amenable number.

354105709 is a deficient number, since it is larger than the sum of its proper divisors (1).

354105709 is an equidigital number, since it uses as much as digits as its factorization.

354105709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 354105709 is about 18817.6966975238. The cubic root of 354105709 is about 707.4748018845.

The spelling of 354105709 in words is "three hundred fifty-four million, one hundred five thousand, seven hundred nine".