1161242063 has 2 divisors, whose sum is σ = 1161242064. Its totient is φ = 1161242062.

The previous prime is 1161242059. The next prime is 1161242081. The reversal of 1161242063 is 3602421611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1161242063 - 2² = 1161242059 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161242023) 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, 580621031 + 580621032.

It is an arithmetic number, because the mean of its divisors is an integer number (580621032).

Almost surely, 2^1161242063 is an apocalyptic number.

1161242063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161242063 is an equidigital number, since it uses as much as digits as its factorization.

1161242063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1161242063 is about 34077.0019661355. The cubic root of 1161242063 is about 1051.0924572300.

Adding to 1161242063 its reverse (3602421611), we get a palindrome (4763663674).

The spelling of 1161242063 in words is "one billion, one hundred sixty-one million, two hundred forty-two thousand, sixty-three".