1113441445 has 4 divisors (see below), whose sum is σ = 1336129740. Its totient is φ = 890753152.

The previous prime is 1113441419. The next prime is 1113441463. The reversal of 1113441445 is 5441443111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5441443111 = 13 ⋅418572547.

It can be written as a sum of positive squares in 2 ways, for example, as 803892609 + 309548836 = 28353^2 + 17594^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113441445 - 2¹³ = 1113433253 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111344140 + ... + 111344149.

It is an arithmetic number, because the mean of its divisors is an integer number (334032435).

Almost surely, 2^1113441445 is an apocalyptic number.

It is an amenable number.

1113441445 is a deficient number, since it is larger than the sum of its proper divisors (222688295).

1113441445 is an equidigital number, since it uses as much as digits as its factorization.

1113441445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222688294.

The product of its digits is 3840, while the sum is 28.

The square root of 1113441445 is about 33368.2700330718. The cubic root of 1113441445 is about 1036.4677519505.

Adding to 1113441445 its reverse (5441443111), we get a palindrome (6554884556).

The spelling of 1113441445 in words is "one billion, one hundred thirteen million, four hundred forty-one thousand, four hundred forty-five".