345042213 has 4 divisors (see below), whose sum is σ = 460056288. Its totient is φ = 230028140.

The previous prime is 345042209. The next prime is 345042221. The reversal of 345042213 is 312240543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 345042213 - 2² = 345042209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345042233) 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, 57507033 + ... + 57507038.

It is an arithmetic number, because the mean of its divisors is an integer number (115014072).

Almost surely, 2^345042213 is an apocalyptic number.

It is an amenable number.

345042213 is a deficient number, since it is larger than the sum of its proper divisors (115014075).

345042213 is a wasteful number, since it uses less digits than its factorization.

345042213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115014074.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 345042213 is about 18575.3119220109. The cubic root of 345042213 is about 701.3865124214.

Adding to 345042213 its reverse (312240543), we get a palindrome (657282756).

The spelling of 345042213 in words is "three hundred forty-five million, forty-two thousand, two hundred thirteen".