1105243144 has 8 divisors (see below), whose sum is σ = 2072330910. Its totient is φ = 552621568.

The previous prime is 1105243133. The next prime is 1105243159. The reversal of 1105243144 is 4413425011.

It can be written as a sum of positive squares in only one way, i.e., 1013658244 + 91584900 = 31838^2 + 9570^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69077689 + ... + 69077704.

Almost surely, 2^1105243144 is an apocalyptic number.

It is an amenable number.

1105243144 is a deficient number, since it is larger than the sum of its proper divisors (967087766).

1105243144 is a wasteful number, since it uses less digits than its factorization.

1105243144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138155399 (or 138155395 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1105243144 is about 33245.1973072803. The cubic root of 1105243144 is about 1033.9176356419.

Adding to 1105243144 its reverse (4413425011), we get a palindrome (5518668155).

The spelling of 1105243144 in words is "one billion, one hundred five million, two hundred forty-three thousand, one hundred forty-four".