1144031421 has 16 divisors (see below), whose sum is σ = 1643323136. Its totient is φ = 703757376.

The previous prime is 1144031419. The next prime is 1144031437. The reversal of 1144031421 is 1241304411.

It is not a de Polignac number, because 1144031421 - 2¹ = 1144031419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144031461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183471 + ... + 189603.

It is an arithmetic number, because the mean of its divisors is an integer number (102707696).

Almost surely, 2^1144031421 is an apocalyptic number.

It is an amenable number.

1144031421 is a deficient number, since it is larger than the sum of its proper divisors (499291715).

1144031421 is a wasteful number, since it uses less digits than its factorization.

1144031421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10932.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1144031421 is about 33823.5335380560. The cubic root of 1144031421 is about 1045.8738814682.

Adding to 1144031421 its reverse (1241304411), we get a palindrome (2385335832).

The spelling of 1144031421 in words is "one billion, one hundred forty-four million, thirty-one thousand, four hundred twenty-one".