1144023427 has 4 divisors (see below), whose sum is σ = 1193763600. Its totient is φ = 1094283256.

The previous prime is 1144023409. The next prime is 1144023467. The reversal of 1144023427 is 7243204411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144023427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1144023395 and 1144023404.

It is not an unprimeable number, because it can be changed into a prime (1144023467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24870052 + ... + 24870097.

It is an arithmetic number, because the mean of its divisors is an integer number (298440900).

Almost surely, 2^1144023427 is an apocalyptic number.

1144023427 is a deficient number, since it is larger than the sum of its proper divisors (49740173).

1144023427 is an equidigital number, since it uses as much as digits as its factorization.

1144023427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49740172.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 1144023427 is about 33823.4153656901. The cubic root of 1144023427 is about 1045.8714454234.

Adding to 1144023427 its reverse (7243204411), we get a palindrome (8387227838).

The spelling of 1144023427 in words is "one billion, one hundred forty-four million, twenty-three thousand, four hundred twenty-seven".