1155144547 has 2 divisors, whose sum is σ = 1155144548. Its totient is φ = 1155144546.

The previous prime is 1155144541. The next prime is 1155144553. The reversal of 1155144547 is 7454415511.

It is a balanced prime because it is at equal distance from previous prime (1155144541) and next prime (1155144553).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1155144547 is a prime.

It is not a weakly prime, because it can be changed into another prime (1155144541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577572273 + 577572274.

It is an arithmetic number, because the mean of its divisors is an integer number (577572274).

Almost surely, 2^1155144547 is an apocalyptic number.

1155144547 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155144547 is an equidigital number, since it uses as much as digits as its factorization.

1155144547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56000, while the sum is 37.

The square root of 1155144547 is about 33987.4174805913. The cubic root of 1155144547 is about 1049.2495157245.

The spelling of 1155144547 in words is "one billion, one hundred fifty-five million, one hundred forty-four thousand, five hundred forty-seven".