355145009 has 2 divisors, whose sum is σ = 355145010. Its totient is φ = 355145008.

The previous prime is 355144969. The next prime is 355145023. The reversal of 355145009 is 900541553.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 306145009 + 49000000 = 17497^2 + 7000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-355145009 is a prime.

It is a super-2 number, since 2×355145009² = 252255954835220162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (355145069) 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, 177572504 + 177572505.

It is an arithmetic number, because the mean of its divisors is an integer number (177572505).

Almost surely, 2^355145009 is an apocalyptic number.

It is an amenable number.

355145009 is a deficient number, since it is larger than the sum of its proper divisors (1).

355145009 is an equidigital number, since it uses as much as digits as its factorization.

355145009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 355145009 is about 18845.2914278342. The cubic root of 355145009 is about 708.1662718478.

The spelling of 355145009 in words is "three hundred fifty-five million, one hundred forty-five thousand, nine".