105345423 has 12 divisors (see below), whose sum is σ = 152850880. Its totient is φ = 69914016.

The previous prime is 105345419. The next prime is 105345431. The reversal of 105345423 is 324543501.

It is not a de Polignac number, because 105345423 - 2² = 105345419 is a prime.

It is a super-2 number, since 2×105345423² = 22195316294097858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105345403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24238 + ... + 28251.

Almost surely, 2^105345423 is an apocalyptic number.

105345423 is a deficient number, since it is larger than the sum of its proper divisors (47505457).

105345423 is a wasteful number, since it uses less digits than its factorization.

105345423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52718 (or 52715 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 105345423 is about 10263.7918431737. The cubic root of 105345423 is about 472.2861651041.

Adding to 105345423 its reverse (324543501), we get a palindrome (429888924).

The spelling of 105345423 in words is "one hundred five million, three hundred forty-five thousand, four hundred twenty-three".