1144145573 has 4 divisors (see below), whose sum is σ = 1151722848. Its totient is φ = 1136568300.

The previous prime is 1144145537. The next prime is 1144145579. The reversal of 1144145573 is 3755414411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1144145573 - 2¹⁶ = 1144080037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144145579) 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, 3788411 + ... + 3788712.

It is an arithmetic number, because the mean of its divisors is an integer number (287930712).

Almost surely, 2^1144145573 is an apocalyptic number.

It is an amenable number.

1144145573 is a deficient number, since it is larger than the sum of its proper divisors (7577275).

1144145573 is an equidigital number, since it uses as much as digits as its factorization.

1144145573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7577274.

The product of its digits is 33600, while the sum is 35.

The square root of 1144145573 is about 33825.2209601061. The cubic root of 1144145573 is about 1045.9086662426.

Adding to 1144145573 its reverse (3755414411), we get a palindrome (4899559984).

The spelling of 1144145573 in words is "one billion, one hundred forty-four million, one hundred forty-five thousand, five hundred seventy-three".