351223105 has 4 divisors (see below), whose sum is σ = 421467732. Its totient is φ = 280978480.

The previous prime is 351223091. The next prime is 351223163. The reversal of 351223105 is 501322153.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 501322153 = 1433 ⋅349841.

It can be written as a sum of positive squares in 2 ways, for example, as 49575681 + 301647424 = 7041^2 + 17368^2 .

It is not a de Polignac number, because 351223105 - 2⁹ = 351222593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35122306 + ... + 35122315.

It is an arithmetic number, because the mean of its divisors is an integer number (105366933).

Almost surely, 2^351223105 is an apocalyptic number.

It is an amenable number.

351223105 is a deficient number, since it is larger than the sum of its proper divisors (70244627).

351223105 is an equidigital number, since it uses as much as digits as its factorization.

351223105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70244626.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 351223105 is about 18740.9472812876. The cubic root of 351223105 is about 705.5498317909.

Adding to 351223105 its reverse (501322153), we get a palindrome (852545258).

The spelling of 351223105 in words is "three hundred fifty-one million, two hundred twenty-three thousand, one hundred five".