1105243045 has 8 divisors (see below), whose sum is σ = 1339168896. Its totient is φ = 875609616.

The previous prime is 1105243043. The next prime is 1105243057. The reversal of 1105243045 is 5403425011.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1105243045 - 2¹ = 1105243043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105243043) 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, 1072537 + ... + 1073566.

It is an arithmetic number, because the mean of its divisors is an integer number (167396112).

Almost surely, 2^1105243045 is an apocalyptic number.

It is an amenable number.

1105243045 is a deficient number, since it is larger than the sum of its proper divisors (233925851).

1105243045 is a wasteful number, since it uses less digits than its factorization.

1105243045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146211.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1105243045 is about 33245.1958183434. The cubic root of 1105243045 is about 1033.9176047715.

Adding to 1105243045 its reverse (5403425011), we get a palindrome (6508668056).

It can be divided in two parts, 110524 and 3045, that added together give a square (113569 = 337²).

The spelling of 1105243045 in words is "one billion, one hundred five million, two hundred forty-three thousand, forty-five".