1103145866 has 16 divisors (see below), whose sum is σ = 1667009160. Its totient is φ = 547491840.

The previous prime is 1103145859. The next prime is 1103145887. The reversal of 1103145866 is 6685413011.

It can be written as a sum of positive squares in 4 ways, for example, as 701985025 + 401160841 = 26495^2 + 20029^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147530 + ... + 154826.

Almost surely, 2^1103145866 is an apocalyptic number.

1103145866 is a deficient number, since it is larger than the sum of its proper divisors (563863294).

1103145866 is a wasteful number, since it uses less digits than its factorization.

1103145866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7849.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1103145866 is about 33213.6397583884. The cubic root of 1103145866 is about 1033.2632439685.

Adding to 1103145866 its reverse (6685413011), we get a palindrome (7788558877).

It can be divided in two parts, 1103145 and 866, that added together give a palindrome (1104011).

The spelling of 1103145866 in words is "one billion, one hundred three million, one hundred forty-five thousand, eight hundred sixty-six".