1186186049 has 2 divisors, whose sum is σ = 1186186050. Its totient is φ = 1186186048.

The previous prime is 1186186031. The next prime is 1186186051. The reversal of 1186186049 is 9406816811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1181640625 + 4545424 = 34375^2 + 2132^2 .

It is a cyclic number.

It is not a de Polignac number, because 1186186049 - 2¹⁶ = 1186120513 is a prime.

Together with 1186186051, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1186186249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 593093024 + 593093025.

It is an arithmetic number, because the mean of its divisors is an integer number (593093025).

Almost surely, 2^1186186049 is an apocalyptic number.

It is an amenable number.

1186186049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1186186049 is an equidigital number, since it uses as much as digits as its factorization.

1186186049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 1186186049 is about 34441.0517986893. The cubic root of 1186186049 is about 1058.5651789639.

The spelling of 1186186049 in words is "one billion, one hundred eighty-six million, one hundred eighty-six thousand, forty-nine".