345903555 has 16 divisors (see below), whose sum is σ = 577509120. Its totient is φ = 176460768.

The previous prime is 345903541. The next prime is 345903559. The reversal of 345903555 is 555309543.

It is not a de Polignac number, because 345903555 - 2⁷ = 345903427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345903559) 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 15 ways as a sum of consecutive naturals, for example, 500965 + ... + 501654.

It is an arithmetic number, because the mean of its divisors is an integer number (36094320).

Almost surely, 2^345903555 is an apocalyptic number.

345903555 is a deficient number, since it is larger than the sum of its proper divisors (231605565).

345903555 is a wasteful number, since it uses less digits than its factorization.

345903555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002650.

The product of its (nonzero) digits is 202500, while the sum is 39.

The square root of 345903555 is about 18598.4825993950. The cubic root of 345903555 is about 701.9696600551.

The spelling of 345903555 in words is "three hundred forty-five million, nine hundred three thousand, five hundred fifty-five".