345220135 has 16 divisors (see below), whose sum is σ = 449398656. Its totient is φ = 253064448.

The previous prime is 345220103. The next prime is 345220171. The reversal of 345220135 is 531022543.

It is not a de Polignac number, because 345220135 - 2⁵ = 345220103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 10479 + ... + 28288.

It is an arithmetic number, because the mean of its divisors is an integer number (28087416).

Almost surely, 2^345220135 is an apocalyptic number.

345220135 is a deficient number, since it is larger than the sum of its proper divisors (104178521).

345220135 is a wasteful number, since it uses less digits than its factorization.

345220135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38922.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 345220135 is about 18580.1005110306. The cubic root of 345220135 is about 701.5070490231.

Adding to 345220135 its reverse (531022543), we get a palindrome (876242678).

The spelling of 345220135 in words is "three hundred forty-five million, two hundred twenty thousand, one hundred thirty-five".