1181114897 has 2 divisors, whose sum is σ = 1181114898. Its totient is φ = 1181114896.

The previous prime is 1181114863. The next prime is 1181114959. The reversal of 1181114897 is 7984111811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 864595216 + 316519681 = 29404^2 + 17791^2 .

It is a cyclic number.

It is not a de Polignac number, because 1181114897 - 2⁶ = 1181114833 is a prime.

It is not a weakly prime, because it can be changed into another prime (1181114827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590557448 + 590557449.

It is an arithmetic number, because the mean of its divisors is an integer number (590557449).

Almost surely, 2^1181114897 is an apocalyptic number.

It is an amenable number.

1181114897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1181114897 is an equidigital number, since it uses as much as digits as its factorization.

1181114897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 41.

The square root of 1181114897 is about 34367.3521965251. The cubic root of 1181114897 is about 1057.0545072700.

The spelling of 1181114897 in words is "one billion, one hundred eighty-one million, one hundred fourteen thousand, eight hundred ninety-seven".