1144022001 has 8 divisors (see below), whose sum is σ = 1591682880. Its totient is φ = 729521232.

The previous prime is 1144021997. The next prime is 1144022003. The reversal of 1144022001 is 1002204411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1144022001 - 2² = 1144021997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144022003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8289946 + ... + 8290083.

It is an arithmetic number, because the mean of its divisors is an integer number (198960360).

Almost surely, 2^1144022001 is an apocalyptic number.

It is an amenable number.

1144022001 is a deficient number, since it is larger than the sum of its proper divisors (447660879).

1144022001 is a wasteful number, since it uses less digits than its factorization.

1144022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16580055.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1144022001 is about 33823.3942856124. The cubic root of 1144022001 is about 1045.8710108713.

Adding to 1144022001 its reverse (1002204411), we get a palindrome (2146226412).

It can be divided in two parts, 114402 and 2001, that added together give a triangular number (116403 = T₄₈₂).

The spelling of 1144022001 in words is "one billion, one hundred forty-four million, twenty-two thousand, one".