1115989066 has 4 divisors (see below), whose sum is σ = 1673983602. Its totient is φ = 557994532.

The previous prime is 1115989037. The next prime is 1115989081. The reversal of 1115989066 is 6609895111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6609895111 = 113 ⋅58494647.

It can be written as a sum of positive squares in only one way, i.e., 1107491841 + 8497225 = 33279^2 + 2915^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278997265 + ... + 278997268.

Almost surely, 2^1115989066 is an apocalyptic number.

1115989066 is a deficient number, since it is larger than the sum of its proper divisors (557994536).

1115989066 is an equidigital number, since it uses as much as digits as its factorization.

1115989066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557994535.

The product of its (nonzero) digits is 116640, while the sum is 46.

The square root of 1115989066 is about 33406.4225262149. The cubic root of 1115989066 is about 1037.2576499985.

The spelling of 1115989066 in words is "one billion, one hundred fifteen million, nine hundred eighty-nine thousand, sixty-six".