1155655471 has 2 divisors, whose sum is σ = 1155655472. Its totient is φ = 1155655470.

The previous prime is 1155655469. The next prime is 1155655483. The reversal of 1155655471 is 1745565511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1155655471 - 2¹ = 1155655469 is a prime.

It is a super-3 number, since 3×1155655471³ (a number of 28 digits) contains 333 as substring.

Together with 1155655469, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155655441) 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, 577827735 + 577827736.

It is an arithmetic number, because the mean of its divisors is an integer number (577827736).

Almost surely, 2^1155655471 is an apocalyptic number.

1155655471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155655471 is an equidigital number, since it uses as much as digits as its factorization.

1155655471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105000, while the sum is 40.

The square root of 1155655471 is about 33994.9330194957. The cubic root of 1155655471 is about 1049.4041883562.

The spelling of 1155655471 in words is "one billion, one hundred fifty-five million, six hundred fifty-five thousand, four hundred seventy-one".