355123603 has 4 divisors (see below), whose sum is σ = 355394160. Its totient is φ = 354853048.

The previous prime is 355123597. The next prime is 355123607. The reversal of 355123603 is 306321553.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 355123603 - 2¹⁷ = 354992531 is a prime.

It is a super-2 number, since 2×355123603² = 252225546815403218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355123607) 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 in 3 ways as a sum of consecutive naturals, for example, 133300 + ... + 135937.

It is an arithmetic number, because the mean of its divisors is an integer number (88848540).

Almost surely, 2^355123603 is an apocalyptic number.

355123603 is a deficient number, since it is larger than the sum of its proper divisors (270557).

355123603 is a wasteful number, since it uses less digits than its factorization.

355123603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270556.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 355123603 is about 18844.7234790007. The cubic root of 355123603 is about 708.1520435642.

The spelling of 355123603 in words is "three hundred fifty-five million, one hundred twenty-three thousand, six hundred three".