1361119187 has 2 divisors, whose sum is σ = 1361119188. Its totient is φ = 1361119186.

The previous prime is 1361119181. The next prime is 1361119211. The reversal of 1361119187 is 7819111631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1361119187 - 2⁴ = 1361119171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1361119187.

It is not a weakly prime, because it can be changed into another prime (1361119181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680559593 + 680559594.

It is an arithmetic number, because the mean of its divisors is an integer number (680559594).

Almost surely, 2^1361119187 is an apocalyptic number.

1361119187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361119187 is an equidigital number, since it uses as much as digits as its factorization.

1361119187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 38.

The square root of 1361119187 is about 36893.3488179103. The cubic root of 1361119187 is about 1108.2354853500.

The spelling of 1361119187 in words is "one billion, three hundred sixty-one million, one hundred nineteen thousand, one hundred eighty-seven".