1155161327 has 2 divisors, whose sum is σ = 1155161328. Its totient is φ = 1155161326.

The previous prime is 1155161303. The next prime is 1155161443. The reversal of 1155161327 is 7231615511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1155161327 - 2⁸ = 1155161071 is a prime.

It is a super-3 number, since 3×1155161327³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1155161293 and 1155161302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155161827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577580663 + 577580664.

It is an arithmetic number, because the mean of its divisors is an integer number (577580664).

Almost surely, 2^1155161327 is an apocalyptic number.

1155161327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155161327 is an equidigital number, since it uses as much as digits as its factorization.

1155161327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 32.

The square root of 1155161327 is about 33987.6643357557. The cubic root of 1155161327 is about 1049.2545962782.

Adding to 1155161327 its reverse (7231615511), we get a palindrome (8386776838).

The spelling of 1155161327 in words is "one billion, one hundred fifty-five million, one hundred sixty-one thousand, three hundred twenty-seven".