1232544113 has 4 divisors (see below), whose sum is σ = 1232685300. Its totient is φ = 1232402928.

The previous prime is 1232544067. The next prime is 1232544133. The reversal of 1232544113 is 3114452321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 609941809 + 622602304 = 24697^2 + 24952^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232544113 - 2¹⁸ = 1232281969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232544133) 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, 56570 + ... + 75267.

It is an arithmetic number, because the mean of its divisors is an integer number (308171325).

Almost surely, 2^1232544113 is an apocalyptic number.

It is an amenable number.

1232544113 is a deficient number, since it is larger than the sum of its proper divisors (141187).

1232544113 is an equidigital number, since it uses as much as digits as its factorization.

1232544113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141186.

The product of its digits is 2880, while the sum is 26.

The square root of 1232544113 is about 35107.6076228501. The cubic root of 1232544113 is about 1072.1794784818.

Adding to 1232544113 its reverse (3114452321), we get a palindrome (4346996434).

The spelling of 1232544113 in words is "one billion, two hundred thirty-two million, five hundred forty-four thousand, one hundred thirteen".