1189051163 has 2 divisors, whose sum is σ = 1189051164. Its totient is φ = 1189051162.

The previous prime is 1189051153. The next prime is 1189051181. The reversal of 1189051163 is 3611509811.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1189051163 - 2⁴ = 1189051147 is a prime.

It is not a weakly prime, because it can be changed into another prime (1189051133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594525581 + 594525582.

It is an arithmetic number, because the mean of its divisors is an integer number (594525582).

Almost surely, 2^1189051163 is an apocalyptic number.

1189051163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1189051163 is an equidigital number, since it uses as much as digits as its factorization.

1189051163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 1189051163 is about 34482.6211735709. The cubic root of 1189051163 is about 1059.4167798549.

The spelling of 1189051163 in words is "one billion, one hundred eighty-nine million, fifty-one thousand, one hundred sixty-three".