105430247 has 8 divisors (see below), whose sum is σ = 113914416. Its totient is φ = 96999552.

The previous prime is 105430231. The next prime is 105430253. The reversal of 105430247 is 742034501.

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

It is not a de Polignac number, because 105430247 - 2⁴ = 105430231 is a prime.

It is a super-2 number, since 2×105430247² = 22231073964962018, 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 (105430207) 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, 9218 + ... + 17199.

It is an arithmetic number, because the mean of its divisors is an integer number (14239302).

Almost surely, 2^105430247 is an apocalyptic number.

105430247 is a deficient number, since it is larger than the sum of its proper divisors (8484169).

105430247 is a wasteful number, since it uses less digits than its factorization.

105430247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26737.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 105430247 is about 10267.9232077378. The cubic root of 105430247 is about 472.4128925022.

Adding to 105430247 its reverse (742034501), we get a palindrome (847464748).

The spelling of 105430247 in words is "one hundred five million, four hundred thirty thousand, two hundred forty-seven".