1118906977 has 2 divisors, whose sum is σ = 1118906978. Its totient is φ = 1118906976.

The previous prime is 1118906959. The next prime is 1118907001. The reversal of 1118906977 is 7796098111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 770562081 + 348344896 = 27759^2 + 18664^2 .

It is an emirp because it is prime and its reverse (7796098111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1118906977 - 2⁷ = 1118906849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1118906977.

It is not a weakly prime, because it can be changed into another prime (1118906917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559453488 + 559453489.

It is an arithmetic number, because the mean of its divisors is an integer number (559453489).

Almost surely, 2^1118906977 is an apocalyptic number.

It is an amenable number.

1118906977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118906977 is an equidigital number, since it uses as much as digits as its factorization.

1118906977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 49.

The square root of 1118906977 is about 33450.0669207103. The cubic root of 1118906977 is about 1038.1608821111.

The spelling of 1118906977 in words is "one billion, one hundred eighteen million, nine hundred six thousand, nine hundred seventy-seven".