1144828777 has 2 divisors, whose sum is σ = 1144828778. Its totient is φ = 1144828776.

The previous prime is 1144828733. The next prime is 1144828787. The reversal of 1144828777 is 7778284411.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 661312656 + 483516121 = 25716^2 + 21989^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144828777 - 2⁷ = 1144828649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1144828777.

It is not a weakly prime, because it can be changed into another prime (1144828787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572414388 + 572414389.

It is an arithmetic number, because the mean of its divisors is an integer number (572414389).

Almost surely, 2^1144828777 is an apocalyptic number.

It is an amenable number.

1144828777 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144828777 is an equidigital number, since it uses as much as digits as its factorization.

1144828777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 702464, while the sum is 49.

The square root of 1144828777 is about 33835.3184852751. The cubic root of 1144828777 is about 1046.1168060744.

It can be divided in two parts, 1144 and 828777, that added together give a square (829921 = 911²).

The spelling of 1144828777 in words is "one billion, one hundred forty-four million, eight hundred twenty-eight thousand, seven hundred seventy-seven".