1119947977 has 2 divisors, whose sum is σ = 1119947978. Its totient is φ = 1119947976.

The previous prime is 1119947963. The next prime is 1119947987. The reversal of 1119947977 is 7797499111.

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., 1050991561 + 68956416 = 32419^2 + 8304^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1119947977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1119947957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559973988 + 559973989.

It is an arithmetic number, because the mean of its divisors is an integer number (559973989).

Almost surely, 2^1119947977 is an apocalyptic number.

It is an amenable number.

1119947977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1119947977 is an equidigital number, since it uses as much as digits as its factorization.

1119947977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1000188, while the sum is 55.

The square root of 1119947977 is about 33465.6238101130. The cubic root of 1119947977 is about 1038.4827410069.

The spelling of 1119947977 in words is "one billion, one hundred nineteen million, nine hundred forty-seven thousand, nine hundred seventy-seven".