1144319999 has 8 divisors (see below), whose sum is σ = 1175499600. Its totient is φ = 1113348096.

The previous prime is 1144319987. The next prime is 1144320029. The reversal of 1144319999 is 9999134411.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144319999 is a prime.

It is a super-2 number, since 2×1144319999² = 2618936520222720002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144319959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40724 + ... + 62825.

It is an arithmetic number, because the mean of its divisors is an integer number (146937450).

Almost surely, 2^1144319999 is an apocalyptic number.

1144319999 is a deficient number, since it is larger than the sum of its proper divisors (31179601).

1144319999 is a wasteful number, since it uses less digits than its factorization.

1144319999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103849.

The product of its digits is 314928, while the sum is 50.

The square root of 1144319999 is about 33827.7992042048. The cubic root of 1144319999 is about 1045.9618134409.

The spelling of 1144319999 in words is "one billion, one hundred forty-four million, three hundred nineteen thousand, nine hundred ninety-nine".