1115345515 has 16 divisors (see below), whose sum is σ = 1365527808. Its totient is φ = 874247296.

The previous prime is 1115345513. The next prime is 1115345521. The reversal of 1115345515 is 5155435111.

It is a happy number.

It is not a de Polignac number, because 1115345515 - 2¹ = 1115345513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115345513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226257 + ... + 231133.

It is an arithmetic number, because the mean of its divisors is an integer number (85345488).

Almost surely, 2^1115345515 is an apocalyptic number.

1115345515 is a deficient number, since it is larger than the sum of its proper divisors (250182293).

1115345515 is an equidigital number, since it uses as much as digits as its factorization.

1115345515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5798.

The product of its digits is 7500, while the sum is 31.

The square root of 1115345515 is about 33396.7889923567. The cubic root of 1115345515 is about 1037.0582285249.

The spelling of 1115345515 in words is "one billion, one hundred fifteen million, three hundred forty-five thousand, five hundred fifteen".