355665091 has 2 divisors, whose sum is σ = 355665092. Its totient is φ = 355665090.

The previous prime is 355665067. The next prime is 355665103. The reversal of 355665091 is 190566553.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 355665091 - 2⁵ = 355665059 is a prime.

It is not a weakly prime, because it can be changed into another prime (355665391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177832545 + 177832546.

It is an arithmetic number, because the mean of its divisors is an integer number (177832546).

Almost surely, 2^355665091 is an apocalyptic number.

355665091 is a deficient number, since it is larger than the sum of its proper divisors (1).

355665091 is an equidigital number, since it uses as much as digits as its factorization.

355665091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 121500, while the sum is 40.

The square root of 355665091 is about 18859.0851050628. The cubic root of 355665091 is about 708.5117878891.

The spelling of 355665091 in words is "three hundred fifty-five million, six hundred sixty-five thousand, ninety-one".