1115507065 has 8 divisors (see below), whose sum is σ = 1338788808. Its totient is φ = 892285440.

The previous prime is 1115507027. The next prime is 1115507089. The reversal of 1115507065 is 5607055111.

It can be written as a sum of positive squares in 4 ways, for example, as 144312169 + 971194896 = 12013^2 + 31164^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1115507065 - 2⁷ = 1115506937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58569 + ... + 75241.

It is an arithmetic number, because the mean of its divisors is an integer number (167348601).

Almost surely, 2^1115507065 is an apocalyptic number.

It is an amenable number.

1115507065 is a deficient number, since it is larger than the sum of its proper divisors (223281743).

1115507065 is a wasteful number, since it uses less digits than its factorization.

1115507065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30059.

The product of its (nonzero) digits is 5250, while the sum is 31.

The square root of 1115507065 is about 33399.2075504794. The cubic root of 1115507065 is about 1037.1082963189.

The spelling of 1115507065 in words is "one billion, one hundred fifteen million, five hundred seven thousand, sixty-five".