345213105 has 16 divisors (see below), whose sum is σ = 552900480. Its totient is φ = 183927168.

The previous prime is 345213103. The next prime is 345213107. The reversal of 345213105 is 501312543.

It is an interprime number because it is at equal distance from previous prime (345213103) and next prime (345213107).

It is not a de Polignac number, because 345213105 - 2¹ = 345213103 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (345213103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4356 + ... + 26634.

It is an arithmetic number, because the mean of its divisors is an integer number (34556280).

Almost surely, 2^345213105 is an apocalyptic number.

It is an amenable number.

345213105 is a deficient number, since it is larger than the sum of its proper divisors (207687375).

345213105 is a wasteful number, since it uses less digits than its factorization.

345213105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23320.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 345213105 is about 18579.9113291749. The cubic root of 345213105 is about 701.5022872035.

Adding to 345213105 its reverse (501312543), we get a palindrome (846525648).

The spelling of 345213105 in words is "three hundred forty-five million, two hundred thirteen thousand, one hundred five".