1144198273 has 4 divisors (see below), whose sum is σ = 1193946048. Its totient is φ = 1094450500.

The previous prime is 1144198247. The next prime is 1144198283. The reversal of 1144198273 is 3728914411.

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 1144198273 - 2¹⁷ = 1144067201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144198283) 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, 24873853 + ... + 24873898.

It is an arithmetic number, because the mean of its divisors is an integer number (298486512).

Almost surely, 2^1144198273 is an apocalyptic number.

It is an amenable number.

1144198273 is a deficient number, since it is larger than the sum of its proper divisors (49747775).

1144198273 is an equidigital number, since it uses as much as digits as its factorization.

1144198273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49747774.

The product of its digits is 48384, while the sum is 40.

The square root of 1144198273 is about 33825.9999556554. Note that the first 4 decimals coincide. The cubic root of 1144198273 is about 1045.9247243800.

The spelling of 1144198273 in words is "one billion, one hundred forty-four million, one hundred ninety-eight thousand, two hundred seventy-three".