1189313 has 2 divisors, whose sum is σ = 1189314. Its totient is φ = 1189312.

The previous prime is 1189301. The next prime is 1189327. The reversal of 1189313 is 3139811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1181569 + 7744 = 1087^2 + 88^2 .

It is an emirp because it is prime and its reverse (3139811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1189313 - 2⁸ = 1189057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1189333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594656 + 594657.

It is an arithmetic number, because the mean of its divisors is an integer number (594657).

2^1189313 is an apocalyptic number.

It is an amenable number.

1189313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1189313 is an equidigital number, since it uses as much as digits as its factorization.

1189313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 26.

The square root of 1189313 is about 1090.5562800699. The cubic root of 1189313 is about 105.9494537696.

The spelling of 1189313 in words is "one million, one hundred eighty-nine thousand, three hundred thirteen".