355243073 has 6 divisors (see below), whose sum is σ = 371360514. Its totient is φ = 339797216.

The previous prime is 355243037. The next prime is 355243079. The reversal of 355243073 is 370342553.

It can be written as a sum of positive squares in only one way, i.e., 306355009 + 48888064 = 17503^2 + 6992^2 .

It is not a de Polignac number, because 355243073 - 2⁸ = 355242817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355243079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 335240 + ... + 336297.

It is an arithmetic number, because the mean of its divisors is an integer number (61893419).

Almost surely, 2^355243073 is an apocalyptic number.

It is an amenable number.

355243073 is a deficient number, since it is larger than the sum of its proper divisors (16117441).

355243073 is an equidigital number, since it uses as much as digits as its factorization.

355243073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671583 (or 671560 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 32.

The square root of 355243073 is about 18847.8930652739. The cubic root of 355243073 is about 708.2314463772.

The spelling of 355243073 in words is "three hundred fifty-five million, two hundred forty-three thousand, seventy-three".