1155251063 has 2 divisors, whose sum is σ = 1155251064. Its totient is φ = 1155251062.

The previous prime is 1155250961. The next prime is 1155251089. The reversal of 1155251063 is 3601525511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1155251063 - 2¹⁴ = 1155234679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155251663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577625531 + 577625532.

It is an arithmetic number, because the mean of its divisors is an integer number (577625532).

Almost surely, 2^1155251063 is an apocalyptic number.

1155251063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155251063 is an equidigital number, since it uses as much as digits as its factorization.

1155251063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 1155251063 is about 33988.9844361375. The cubic root of 1155251063 is about 1049.2817652026.

Adding to 1155251063 its reverse (3601525511), we get a palindrome (4756776574).

The spelling of 1155251063 in words is "one billion, one hundred fifty-five million, two hundred fifty-one thousand, sixty-three".