1131625163 has 2 divisors, whose sum is σ = 1131625164. Its totient is φ = 1131625162.

The previous prime is 1131625141. The next prime is 1131625181. The reversal of 1131625163 is 3615261311.

It is a strong prime.

It is an emirp because it is prime and its reverse (3615261311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1131625163 - 2¹⁰ = 1131624139 is a prime.

It is not a weakly prime, because it can be changed into another prime (1131621163) 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, 565812581 + 565812582.

It is an arithmetic number, because the mean of its divisors is an integer number (565812582).

Almost surely, 2^1131625163 is an apocalyptic number.

1131625163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131625163 is an equidigital number, since it uses as much as digits as its factorization.

1131625163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 29.

The square root of 1131625163 is about 33639.6367846028. The cubic root of 1131625163 is about 1042.0795308579.

Adding to 1131625163 its reverse (3615261311), we get a palindrome (4746886474).

The spelling of 1131625163 in words is "one billion, one hundred thirty-one million, six hundred twenty-five thousand, one hundred sixty-three".