1155630115 has 4 divisors (see below), whose sum is σ = 1386756144. Its totient is φ = 924504088.

The previous prime is 1155630061. The next prime is 1155630149. The reversal of 1155630115 is 5110365511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5110365511 = 73 ⋅70005007.

It is a cyclic number.

It is not a de Polignac number, because 1155630115 - 2⁹ = 1155629603 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115563007 + ... + 115563016.

It is an arithmetic number, because the mean of its divisors is an integer number (346689036).

Almost surely, 2^1155630115 is an apocalyptic number.

1155630115 is a deficient number, since it is larger than the sum of its proper divisors (231126029).

1155630115 is an equidigital number, since it uses as much as digits as its factorization.

1155630115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231126028.

The product of its (nonzero) digits is 2250, while the sum is 28.

The square root of 1155630115 is about 33994.5600795186. The cubic root of 1155630115 is about 1049.3965133793.

Adding to 1155630115 its reverse (5110365511), we get a palindrome (6265995626).

The spelling of 1155630115 in words is "one billion, one hundred fifty-five million, six hundred thirty thousand, one hundred fifteen".