1155424087 has 2 divisors, whose sum is σ = 1155424088. Its totient is φ = 1155424086.

The previous prime is 1155424063. The next prime is 1155424097. The reversal of 1155424087 is 7804245511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1155424087 - 2⁷ = 1155423959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155424097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577712043 + 577712044.

It is an arithmetic number, because the mean of its divisors is an integer number (577712044).

Almost surely, 2^1155424087 is an apocalyptic number.

1155424087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155424087 is an equidigital number, since it uses as much as digits as its factorization.

1155424087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 1155424087 is about 33991.5296360726. The cubic root of 1155424087 is about 1049.3341468511.

Adding to 1155424087 its reverse (7804245511), we get a palindrome (8959669598).

The spelling of 1155424087 in words is "one billion, one hundred fifty-five million, four hundred twenty-four thousand, eighty-seven".