1144112545 has 4 divisors (see below), whose sum is σ = 1372935060. Its totient is φ = 915290032.

The previous prime is 1144112539. The next prime is 1144112549. The reversal of 1144112545 is 5452114411.

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 289544256 + 854568289 = 17016^2 + 29233^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144112545 - 2²⁷ = 1009894817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144112549) 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, 114411250 + ... + 114411259.

It is an arithmetic number, because the mean of its divisors is an integer number (343233765).

Almost surely, 2^1144112545 is an apocalyptic number.

It is an amenable number.

1144112545 is a deficient number, since it is larger than the sum of its proper divisors (228822515).

1144112545 is an equidigital number, since it uses as much as digits as its factorization.

1144112545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228822514.

The product of its digits is 3200, while the sum is 28.

The square root of 1144112545 is about 33824.7327409989. The cubic root of 1144112545 is about 1045.8986020792.

Adding to 1144112545 its reverse (5452114411), we get a palindrome (6596226956).

The spelling of 1144112545 in words is "one billion, one hundred forty-four million, one hundred twelve thousand, five hundred forty-five".