1115058857 has 16 divisors (see below), whose sum is σ = 1229064192. Its totient is φ = 1003201920.

The previous prime is 1115058853. The next prime is 1115058869. The reversal of 1115058857 is 7588505111.

It is a cyclic number.

It is not a de Polignac number, because 1115058857 - 2² = 1115058853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115058853) 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, 777413 + ... + 778845.

It is an arithmetic number, because the mean of its divisors is an integer number (76816512).

Almost surely, 2^1115058857 is an apocalyptic number.

It is an amenable number.

1115058857 is a deficient number, since it is larger than the sum of its proper divisors (114005335).

1115058857 is a wasteful number, since it uses less digits than its factorization.

1115058857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128.

The product of its (nonzero) digits is 56000, while the sum is 41.

The square root of 1115058857 is about 33392.4970165455. The cubic root of 1115058857 is about 1036.9693751888.

It can be divided in two parts, 11150 and 58857, that added together give a palindrome (70007).

The spelling of 1115058857 in words is "one billion, one hundred fifteen million, fifty-eight thousand, eight hundred fifty-seven".