1113455445 has 16 divisors (see below), whose sum is σ = 1792462272. Its totient is φ = 590198400.

The previous prime is 1113455437. The next prime is 1113455449. The reversal of 1113455445 is 5445543111.

It is not a de Polignac number, because 1113455445 - 2³ = 1113455437 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113455449) 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, 225256 + ... + 230145.

It is an arithmetic number, because the mean of its divisors is an integer number (112028892).

Almost surely, 2^1113455445 is an apocalyptic number.

1113455445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1113455445 is a deficient number, since it is larger than the sum of its proper divisors (679006827).

1113455445 is a wasteful number, since it uses less digits than its factorization.

1113455445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455572.

The product of its digits is 24000, while the sum is 33.

The square root of 1113455445 is about 33368.4798125417. The cubic root of 1113455445 is about 1036.4720959861.

Adding to 1113455445 its reverse (5445543111), we get a palindrome (6558998556).

The spelling of 1113455445 in words is "one billion, one hundred thirteen million, four hundred fifty-five thousand, four hundred forty-five".