1155055459 has 2 divisors, whose sum is σ = 1155055460. Its totient is φ = 1155055458.

The previous prime is 1155055457. The next prime is 1155055511. The reversal of 1155055459 is 9545505511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1155055459 - 2¹ = 1155055457 is a prime.

It is a super-2 number, since 2×1155055459² = 2668306226731401362, which contains 22 as substring.

Together with 1155055457, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1155055453) 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, 577527729 + 577527730.

It is an arithmetic number, because the mean of its divisors is an integer number (577527730).

Almost surely, 2^1155055459 is an apocalyptic number.

1155055459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155055459 is an equidigital number, since it uses as much as digits as its factorization.

1155055459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112500, while the sum is 40.

The square root of 1155055459 is about 33986.1068526538. The cubic root of 1155055459 is about 1049.2225413387. Note that the first 3 decimals are identical.

The spelling of 1155055459 in words is "one billion, one hundred fifty-five million, fifty-five thousand, four hundred fifty-nine".