345001213 has 4 divisors (see below), whose sum is σ = 365295420. Its totient is φ = 324707008.

The previous prime is 345001211. The next prime is 345001249. The reversal of 345001213 is 312100543.

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

It can be written as a sum of positive squares in 2 ways, for example, as 229159044 + 115842169 = 15138^2 + 10763^2 .

It is a cyclic number.

It is not a de Polignac number, because 345001213 - 2¹ = 345001211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345001211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10147078 + ... + 10147111.

It is an arithmetic number, because the mean of its divisors is an integer number (91323855).

Almost surely, 2^345001213 is an apocalyptic number.

It is an amenable number.

345001213 is a deficient number, since it is larger than the sum of its proper divisors (20294207).

345001213 is a wasteful number, since it uses less digits than its factorization.

345001213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20294206.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 345001213 is about 18574.2082738404. The cubic root of 345001213 is about 701.3587303269.

Adding to 345001213 its reverse (312100543), we get a palindrome (657101756).

The spelling of 345001213 in words is "three hundred forty-five million, one thousand, two hundred thirteen".