345500211 has 8 divisors (see below), whose sum is σ = 526476544. Its totient is φ = 197428680.

The previous prime is 345500209. The next prime is 345500219. The reversal of 345500211 is 112005543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 345500211 - 2¹ = 345500209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 16452391 = 345500211 / (3 + 4 + 5 + 5 + 0 + 0 + 2 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345500219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8226175 + ... + 8226216.

It is an arithmetic number, because the mean of its divisors is an integer number (65809568).

Almost surely, 2^345500211 is an apocalyptic number.

345500211 is a deficient number, since it is larger than the sum of its proper divisors (180976333).

345500211 is a wasteful number, since it uses less digits than its factorization.

345500211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16452401.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 345500211 is about 18587.6359712579. The cubic root of 345500211 is about 701.6967078901.

Adding to 345500211 its reverse (112005543), we get a palindrome (457505754).

The spelling of 345500211 in words is "three hundred forty-five million, five hundred thousand, two hundred eleven".