1189690001 has 2 divisors, whose sum is σ = 1189690002. Its totient is φ = 1189690000.

The previous prime is 1189689961. The next prime is 1189690003. The reversal of 1189690001 is 1000969811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1181709376 + 7980625 = 34376^2 + 2825^2 .

It is an emirp because it is prime and its reverse (1000969811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1189690001 - 2¹⁰ = 1189688977 is a prime.

Together with 1189690003, 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 (1189690003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594845000 + 594845001.

It is an arithmetic number, because the mean of its divisors is an integer number (594845001).

Almost surely, 2^1189690001 is an apocalyptic number.

It is an amenable number.

1189690001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1189690001 is an equidigital number, since it uses as much as digits as its factorization.

1189690001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 35.

The square root of 1189690001 is about 34491.8831176264. The cubic root of 1189690001 is about 1059.6064757927.

The spelling of 1189690001 in words is "one billion, one hundred eighty-nine million, six hundred ninety thousand, one".