105915243 has 16 divisors (see below), whose sum is σ = 161670656. Its totient is φ = 60419520.

The previous prime is 105915217. The next prime is 105915263. The reversal of 105915243 is 342519501.

It is not a de Polignac number, because 105915243 - 2¹² = 105911147 is a prime.

It is a super-2 number, since 2×105915243² = 22436077399498098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105915243.

It is not an unprimeable number, because it can be changed into a prime (105915263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9255 + ... + 17247.

It is an arithmetic number, because the mean of its divisors is an integer number (10104416).

Almost surely, 2^105915243 is an apocalyptic number.

105915243 is a deficient number, since it is larger than the sum of its proper divisors (55755413).

105915243 is an equidigital number, since it uses as much as digits as its factorization.

105915243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8634.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 105915243 is about 10291.5131540508. The cubic root of 105915243 is about 473.1361761828.

The spelling of 105915243 in words is "one hundred five million, nine hundred fifteen thousand, two hundred forty-three".