1189063969 has 2 divisors, whose sum is σ = 1189063970. Its totient is φ = 1189063968.

The previous prime is 1189063961. The next prime is 1189063987. The reversal of 1189063969 is 9693609811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1149210000 + 39853969 = 33900^2 + 6313^2 .

It is an emirp because it is prime and its reverse (9693609811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1189063969 - 2³ = 1189063961 is a prime.

It is a super-2 number, since 2×1189063969² = 2827746244748065922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1189063961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594531984 + 594531985.

It is an arithmetic number, because the mean of its divisors is an integer number (594531985).

Almost surely, 2^1189063969 is an apocalyptic number.

It is an amenable number.

1189063969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1189063969 is an equidigital number, since it uses as much as digits as its factorization.

1189063969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 629856, while the sum is 52.

The square root of 1189063969 is about 34482.8068608111. The cubic root of 1189063969 is about 1059.4205831234.

The spelling of 1189063969 in words is "one billion, one hundred eighty-nine million, sixty-three thousand, nine hundred sixty-nine".