1113144541 has 4 divisors (see below), whose sum is σ = 1113221500. Its totient is φ = 1113067584.

The previous prime is 1113144493. The next prime is 1113144551. The reversal of 1113144541 is 1454413111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 731918916 + 381225625 = 27054^2 + 19525^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113144541 - 2⁹ = 1113144029 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 (1113144551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9516 + ... + 48133.

It is an arithmetic number, because the mean of its divisors is an integer number (278305375).

Almost surely, 2^1113144541 is an apocalyptic number.

It is an amenable number.

1113144541 is a deficient number, since it is larger than the sum of its proper divisors (76959).

1113144541 is an equidigital number, since it uses as much as digits as its factorization.

1113144541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76958.

The product of its digits is 960, while the sum is 25.

The square root of 1113144541 is about 33363.8208393463. The cubic root of 1113144541 is about 1036.3756175506.

Adding to 1113144541 its reverse (1454413111), we get a palindrome (2567557652).

The spelling of 1113144541 in words is "one billion, one hundred thirteen million, one hundred forty-four thousand, five hundred forty-one".