345273213 has 36 divisors (see below), whose sum is σ = 502301120. Its totient is φ = 210887040.

The previous prime is 345273211. The next prime is 345273221. The reversal of 345273213 is 312372543.

It is not a de Polignac number, because 345273213 - 2¹ = 345273211 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345273211) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4370508 + ... + 4370586.

Almost surely, 2^345273213 is an apocalyptic number.

It is an amenable number.

345273213 is a deficient number, since it is larger than the sum of its proper divisors (157027907).

345273213 is an equidigital number, since it uses as much as digits as its factorization.

345273213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 170 counting only the distinct ones).

The product of its digits is 15120, while the sum is 30.

The square root of 345273213 is about 18581.5288122372. The cubic root of 345273213 is about 701.5429996908.

The spelling of 345273213 in words is "three hundred forty-five million, two hundred seventy-three thousand, two hundred thirteen".