1105248243 has 24 divisors (see below), whose sum is σ = 1622346768. Its totient is φ = 668800000.

The previous prime is 1105248241. The next prime is 1105248257. The reversal of 1105248243 is 3428425011.

It is not a de Polignac number, because 1105248243 - 2¹ = 1105248241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1105248243.

It is not an unprimeable number, because it can be changed into a prime (1105248241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274243 + ... + 278243.

It is an arithmetic number, because the mean of its divisors is an integer number (67597782).

Almost surely, 2^1105248243 is an apocalyptic number.

1105248243 is a deficient number, since it is larger than the sum of its proper divisors (517098525).

1105248243 is a wasteful number, since it uses less digits than its factorization.

1105248243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4787 (or 4776 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 1105248243 is about 33245.2739949605. The cubic root of 1105248243 is about 1033.9192256202.

It can be divided in two parts, 11052 and 48243, that added together give a palindrome (59295).

The spelling of 1105248243 in words is "one billion, one hundred five million, two hundred forty-eight thousand, two hundred forty-three".