1105145506 has 16 divisors (see below), whose sum is σ = 1696043448. Its totient is φ = 539884800.

The previous prime is 1105145501. The next prime is 1105145521. The reversal of 1105145506 is 6055415011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1088670025 + 16475481 = 32995^2 + 4059^2 .

It is not an unprimeable number, because it can be changed into a prime (1105145501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3916 + ... + 47176.

Almost surely, 2^1105145506 is an apocalyptic number.

1105145506 is a deficient number, since it is larger than the sum of its proper divisors (590897942).

1105145506 is a wasteful number, since it uses less digits than its factorization.

1105145506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43557.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 1105145506 is about 33243.7288221403. The cubic root of 1105145506 is about 1033.8871890614.

It can be divided in two parts, 1105 and 145506, that added together give a triangular number (146611 = T₅₄₁).

The spelling of 1105145506 in words is "one billion, one hundred five million, one hundred forty-five thousand, five hundred six".