1115661339 has 24 divisors (see below), whose sum is σ = 1736607600. Its totient is φ = 686112192.

The previous prime is 1115661319. The next prime is 1115661341. The reversal of 1115661339 is 9331665111.

1115661339 is a `hidden beast` number, since 1 + 1 + 1 + 5 + 6 + 613 + 39 = 666.

1115661339 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1115661339 - 2⁵ = 1115661307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1115661319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 314017 + ... + 317549.

It is an arithmetic number, because the mean of its divisors is an integer number (72358650).

Almost surely, 2^1115661339 is an apocalyptic number.

1115661339 is a deficient number, since it is larger than the sum of its proper divisors (620946261).

1115661339 is a wasteful number, since it uses less digits than its factorization.

1115661339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6251 (or 6248 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The square root of 1115661339 is about 33401.5170164470. The cubic root of 1115661339 is about 1037.1561046132.

The spelling of 1115661339 in words is "one billion, one hundred fifteen million, six hundred sixty-one thousand, three hundred thirty-nine".