1144399 has 2 divisors, whose sum is σ = 1144400. Its totient is φ = 1144398.

The previous prime is 1144393. The next prime is 1144417. The reversal of 1144399 is 9934411.

It is a weak prime.

It is an emirp because it is prime and its reverse (9934411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1144399 - 2⁷ = 1144271 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1144399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572199 + 572200.

It is an arithmetic number, because the mean of its divisors is an integer number (572200).

2^1144399 is an apocalyptic number.

1144399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144399 is an equidigital number, since it uses as much as digits as its factorization.

1144399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 31.

The square root of 1144399 is about 1069.7658622334. The cubic root of 1144399 is about 104.5985883086.

It can be divided in two parts, 1 and 144399, that added together give a square (144400 = 380²).

The spelling of 1144399 in words is "one million, one hundred forty-four thousand, three hundred ninety-nine".