355641109 has 2 divisors, whose sum is σ = 355641110. Its totient is φ = 355641108.

The previous prime is 355641079. The next prime is 355641113. The reversal of 355641109 is 901146553.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255200625 + 100440484 = 15975^2 + 10022^2 .

It is a cyclic number.

It is not a de Polignac number, because 355641109 - 2¹³ = 355632917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355641179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177820554 + 177820555.

It is an arithmetic number, because the mean of its divisors is an integer number (177820555).

Almost surely, 2^355641109 is an apocalyptic number.

It is an amenable number.

355641109 is a deficient number, since it is larger than the sum of its proper divisors (1).

355641109 is an equidigital number, since it uses as much as digits as its factorization.

355641109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 355641109 is about 18858.4492734689. The cubic root of 355641109 is about 708.4958628780.

The spelling of 355641109 in words is "three hundred fifty-five million, six hundred forty-one thousand, one hundred nine".