1105513945 has 16 divisors (see below), whose sum is σ = 1344816000. Its totient is φ = 872327808.

The previous prime is 1105513943. The next prime is 1105513963. The reversal of 1105513945 is 5493155011.

It is a cyclic number.

It is not a de Polignac number, because 1105513945 - 2¹ = 1105513943 is a prime.

It is a super-2 number, since 2×1105513945² = 2444322165178926050, 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 1105513945.

It is not an unprimeable number, because it can be changed into a prime (1105513943) 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, 192526 + ... + 198184.

It is an arithmetic number, because the mean of its divisors is an integer number (84051000).

Almost surely, 2^1105513945 is an apocalyptic number.

It is an amenable number.

1105513945 is a deficient number, since it is larger than the sum of its proper divisors (239302055).

1105513945 is an equidigital number, since it uses as much as digits as its factorization.

1105513945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6192.

The product of its (nonzero) digits is 13500, while the sum is 34.

The square root of 1105513945 is about 33249.2698416070. The cubic root of 1105513945 is about 1034.0020704764.

Adding to 1105513945 its reverse (5493155011), we get a palindrome (6598668956).

The spelling of 1105513945 in words is "one billion, one hundred five million, five hundred thirteen thousand, nine hundred forty-five".